That depends - do you not want to collect them any longer ? If you don't, then whether you sell them or not will also depend on the grades of the coins as well as variety, date and mint mark. Some of them may not be worth selling and you might be better off trading them to another collector for some coins you do want.
It depends on the dates and conditions, if your coins are all scarred up and such I would recomend buying yourself a soda with 'em.
Only the highest of grades (MS67 or better) are worth anything. Anything less should be used for ALL of our dollar transactions! Remember, the U.S. taxpayers spend over $500 million PER year making paper dollar bills that last no longer than 16 months in circulation before they are destroyed. I am all for a dollar coin design (not the SBA) that SHOULD be used for all non-debit/credit card transactions.
spend em I agree with midas, spend-em if you got them. I spend halves on a regular basis to try and keep them circulating. I do need to get in the mindset of spending dollars though, for now I save them . Not to collect but as a savings plan ( a dollar not spent is a dollar earned??). When the presidentual dollars come out, I plan on spending them if they circulate like they are supposed to.
coinlover, You have some 'tweeners.' The coins aren't good enough to save, but are too good to spend. Your caught in between the collector's mindset that says save them, and the realist mindset that says spend them because deep down you suspect you'll never get more than face value for them. There is no cure.
Unless they are a rare variation, they are probably only worth the face value. If there is some sentimental value to them, by all means hold on to them. Thalia has the first "mommy-baby dollar" (her term for the Sacagawea) that she got, a 2000, same mint date as she is. That coin is, to take back to co-opted by advertising phrase, "priceless."
