Where can I go to see what certain things are "worth"? I have been out of diecast collecting for many years. Id like to unload some stuff if I can. Not looking to retire on this. Running out of shelf space in the garage.

Hard to estimate values anymore................price guides are obsolute for the most part.
Ebay gives you a current price for auctual prices seen (paid for).
Older toys still do pretty good but condition is everything and having original box is a bonus.
Do you have older 1:43 scale diecast that you are going to part with?
Post some examples here.

Yes I do. Ill have to make a list. I have about 8 boxes of diecast. NASCAR, haulers, sprint cars, match boxes. I stopped collecting around 1990. Ill get a list together. Everything is in its original packaging. Yea price guide is what I used to look at.

Price guides are not much use anymore. Just look at e-bay regularly over a few months and watch what similar pieces go for. That's really your best guide to what they are going to sell for.