I'm not sure, but one way you can get a rough value is to figure the average value of each game in a collection is probably around $4 - $8 depending on what you have in terms of consoles and games. Just multiply the number of items in your collection by both 4 and 8 to get the low and high estimate.
Hahaha!
If I valued my collection's total value that way...I'd have to start taking some heavy duty anti-depressants when I saw the number
TC, yeah...no
there's too many variables that can affect a game's worth - even if there was a site that listed every game ever made with a corresponding cost for each one...hundreds could have say, the exact same 500 titles...and each come up w/ different total values of their collection.
Once you've listed all of your items here, I'd suggest making notes of how complete & what condition & what version each one is - then, compare what you've got to what's selling on Amazon, ebay, etc and for how much, write it all down in a list, and bust out a calculator...and let your fingers do the walking
Time-consuming pain in the ass cheeks?
Absolutely :'(
Worthwhile & super-easy to update once it's done?
Absolutely