I don't actually collect the older Marvel sets so I don't know. If I was interested, I would check completed sales on eBay to work out a price. The specific series and years can have very different prices, so be careful that you are checking the correct one.
Lol, nice, yeah, I sold off ton's of 94 sigs a few months back, I'm cleaned out now. I need to finish my chromium xmen signatures from 95. Pretty annoying set to finish too.
Shop around for those.. I spent a long time chasing them, and I think from memory got a whole set for like $15, or $20... Problem is always shipping that gets you anyways.. so yeah.. I would'nt buy off marvel masters on ebay though.. $1500 for all the sets, is completely rediculous.