Is it worth submitting modern coins for grading?

I have a few Silver Eagle coins that are modern and already graded "MS70." Though, I believe they are either not MS70 just by looking at them and reading about the VERY strict guidelines for a coin to be graded 70, or not worth more than you can buy ungraded based on articles about PCGS and NGC "disapproving" of modern coin slabbing. I also have some modern world coins ie: the 2009 silver chines Panda, and a few 2009 Lincoln dollar coins that I would like to get graded. So, what is worth grading and what is worth buying already graded?

In my opinion one is waisting their money having modern coins graded. Most proof coins from modern proof sets grade PR-69 anyway and a PR-70 coin is also becoming common. Right now it is a fad and it is starting to slow down. PR-70 coins are coming down in price for their are lots of them and people have found they have actually lost money. As for MS-69 & MS-70 coins they maybe a little rarer but are still being hyped and that will end also. If you look at the big dealer ads in Coin World and Numismatic News one can find high grade slabbed coins for around the slabbing fee. One has to wonder about so called professional graded coins, when ads show up for MS-65 wheat cents for $10 each. That is less than the slabbing fee and MS-65 is a good grade for a wheat cent. Also on modern commemorative coins some dealers have high grade slabbed ones for the same price or a couple of dollars more than the non graded one. A slabbed coin graded by a grading service is still some ones opinion. You always buy the coin not the slab.

1996 Small Date China PANDA Bear .999 Silver Coin S10Y 1 Ounce Chinese NGC MS69 $149.88

CHINA 1996 Panda 50 yuan Bi-Metal NGC PF68UC CHINESE $3,888.88

1998 Small Date China PANDA Bear .999 Silver Coin S10Y 1 Ounce Chinese NGC MS67 $199.88

1998 Small Date China PANDA Bear .999 Silver Coin S10Y 1 Ounce Chinese NGC MS68 $249.88

1998 Small Date China PANDA Bear .999 Silver Coin S10Y 1 Ounce Chinese NGC MS69 $299.88

1998 AVIATION EXPO 1 oz 10Y Silver Chinese Panda NGC 69 - Gold Privy Mark $295.95

2010 CAPITAL MARKET Silver China Panda NGC 69 Box & COA $295.95

*RARE* 2006 JINAN CITY BANK China 1 oz. Silver Panda NGC 69, NCS $875.00

*VERY RARE* 2009 AGRICULTURAL BANK China 1 oz. Silver Panda NGC 69 - ONLY 15 $899.95

CHINA PANDA 10 YUAN 2009 NGC MS69 PR/ LIKE UNCIRCULATED $139.00

2006 1 OZ Silver Chinese Panda .999 FINE NGC MS64 China's Eagle FREE SHIPPING! $89.99

2009 SILVER PANDA NGC MS-70 30th Anniversary Precious metals $190.00

China 1990 panda 1/2oz gold coin NGC 69 $1,580.00

2000 1oz gold panda coin mirror face NGC 68 $7,980.00

1996 China 10 Yuan Silver Panda coin NGC MS69 SMALL DATE $350.00

1996 China 10 Yuan Silver Panda coin NGC MS69 LARGE DATE $325.00

CHINA 1997 10 YUAN 1 OZ..999 SILVER PANDA CHONGQING NGC MS-69 GEM BU $225.00

CHINA 1993 MUNICH SHOW 1 OZ..999 SILVER PANDA NGC PF-69 $850.00

CHINA 1992 MUNICH SHOW 1 OZ..999 SILVER PANDA NGC PF-69 $850.00

CHINA 1994 5 YUAN .999 1/2 OZ. SILVER PANDA NGC MS-68 KEY DATE $79.00

CHINA 1994 10 YUAN LARGE DATE 1 OZ..999 SILVER PANDA NGC MS-68 GEM BU $158.00

1999 china s10y panda small date ngc ms69 $399.00

1987 CHINA PANDA 96TH A.N.A. CONV. ATLANTA,GA. (5oz) NGC PF-69 ULTRA CAMEO $460.00

Gold Panda NGC 1987 MS 67 China 25 Y ~ 1/4 Ounce Pure .999 fine $489.00

1984 CHINA 25 YUAN 1/4 OZ 999 FINE GOLD PANDA NGC MS68 KEY DATE $550.00

2011 China 1 Oz Silver Panda 10 Yuan NGC MS70 ER Mint State 70 Early Releases $102.55

1997 China 10 Yuan Silver Panda coin NGC MS69 SMALL DATE $375.00

2011 China 1 Oz Silver Panda 10 Yuan NGC MS70 ER Mint State 70 Early Releases $103.00

2012 China 1/20 oz Gold Panda 20 Yuan NGC MS70 ER Early Releases - PANDA LABEL! $137.50

2011 EARLY RELEASES S10Y 1 oz. .999 China Silver Panda NGC MS 69 MS69 Proof Like $60.89

2003 China Silver Panda 10Y 1oz NGC MS 68 $139.00

2005 GOLD PANDA NGC MS69 1 OZ $2,150.00

1985 GOLD PANDA NGC MS69 1 OZ $2,275.00

1991 GOLD PANDA NGC MS69 1 OZ $2,425.00

2002 GOLD PANDA NGC MS69 1 OZ $2,500.00

1993 GOLD PANDA NGC MS69 1 OZ $2,250.00

2001 GOLD PANDA NGC MS69 1 OZ $2,300.00

2003 GOLD PANDA NGC MS69 1 OZ $2,300.00

2011 China 1 Oz Silver Panda 10 Yuan NGC MS70 ER Mint State 70 Early Releases $102.51

1999 China S 10Y 1 oz Silver Panda NGC MS 69 Large Date Serif 1 $540.00

2005 Silver Chinese Panda 1 oz - MS-69 NGC Check www.APMEX.com for up to the minute pricing....

1986 (1 ounce Proof) Gold Chinese Pandas - PF-69 UCAM NGC Check www.APMEX.com for up to the minute pricing....

1989 1 oz Silver Chinese Panda - MS-67 NGC Check www.APMEX.com for up to the minute pricing....