Welcome! This is a site that was created for cataloging card collections and while it has a pricing capability, that's not the primary focus. Also, as with everything else the site offers, pricing is crowdsourced with a combination of members who have sufficient permissions submitting prices from purchases/sales, plus a partnership with Sportlots that imports data based on historical purchases made there.
I just wanted to explain that so you realize it's not as simple as "pricing needs to be updated." If you see any cards missing prices and can fill those in with sources, please feel free to enter them. And if you see any that may be questionable for some reason, you can always report them for review.
In terms of using the pricing here, as with anywhere else you'll want to take it with a grain of salt. You can click on the prices of cards that have them to see which prices were submitted and when, meaning you can obviously ignore all the $0.18 Mike Trout purchases on Sportlots from the 2010s as they're no longer relevant.
I'd say your best bet for more accurate pricing is to find some recent eBay comps but I know that's not always possible for rarer stuff. Still, that tends to be one of the better ways to get an idea of what people are buying/selling cards for.
