Posted By:
Greg ThebergeWhat I also find helpful when researching values is to just do some searches at the major auction houses. If you can get some older catalogues from the last few years, great, but you can also access most of them online now. While I don't collect cards per se, I find these catalogues quite handy. Most reference books on collectibles are completely useless (I helped write one as a matter of fact). Cards may be different, I'm not sure.
Hope this helps.
greg