Selling some of my coins

Hi There, I don't post here all that often but could use some advice from the experts that do. I have been collecting coins for many years. I don't have a huge number of coins but what I do have are a pretty nice. Getting on in years I have decided that it may be time to sell some of them. A few of the nicer ones will be passed on to the kids that appreciate them.
Anyway, I have a fairly complete collection of Morgan Dollars all BU and above, a good collection of half dimes and three cent nickles a complete collection of PCGS ms70 American Silver Eagles, several double eagles, eagles and half eagles. and various other coins. My question is, would I be better off spending the time selling them on eBay or would a dealer give me a fair price?