I found that the best spot to see them on ebay is in 200 coin lots. I was able exactly 200 coins in a small flat rate priority mail box. After fees left and right I was able to make $60 as the auction got very close to $300.
Any coin you can buy at face thats not in circulation anymore can only appreciate in value. I have my tellers constantly looking out for Ikes. With all these new dollar coins coming out, new collectors like me love to find Ikes!
I got about $150 worth a few months ago and went through them. I found a 1972 type 2 in decent shape. I sold it for about $50 on Ebay and cashed the rest back in. Not bad for getting it at face value.
Here's a "Buy it Now" Ebay auction for Ikes. $1.00 plus free shipping. If you earn Ebay bucks you get .02 cents back. That's a $1.00 Ike for .98 cents with free shipping. Can't beat free money!http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190400565363&ssPageName=STRK:MEWNX:IT
I'd buy them for face value. I got a few rolls awhile back managed to sell them at a flea market for 10 for $12 and got rid of red seal $2 bills for $2.50...local dealer only pays $2.25. The Ikes also make interesting tips...you can undertip a bit and the waitress still thinks she got treasure. I used to tip with Morgan dollars when they were worth about $8 apiece....beats a $10 tip. I once gave a valet a $2 bill, the guy must have thought it was a $20, he was extremely polite....thought he was about going to shine my shoes ! ebay is always an option too ! I doubt a dealer would want the Ikes, but someday would. I can't see holding them for 20 years but if you can make 20% + on them, why not ? Plus there are varieties to look for.
Personally, I think it has more to do with the fact that folks think assempling a decent set is relatively easy which for MS65 it might be. Assembling an MS66 set is something completely different though and only by going through a bunch of them can the higher grades be truely appreciated.