Just did some comparison with Go Collect and GPA. I've noticed a lack of recorded sales with Go Collect, to the extent that the site is unreliable for current volatile market values. Searching completed Ebay sales would be more beneficial for Bronze to Modern books if you are not a current subscriber to GPA.
This is a comparison of recorded sales since January 1st 2021 comparing GPA against Go Collect.
Star Wars 1 9.8 9 sales GPA, 3 sales Go Collect
Star Wars 1 9.6 44 sales GPA, 3 sales Go Collect
Star Wars 1 9.4 32 sales GPA, 3 sales Go Collect
Total 85 for GPA vs. 9 Go Collect
Star Wars 43 9.8 10 sales GPA, 1 sale Go Collect
Star Wars 43 9.6 10 sales GPA, 0 sales Go Collect
Star Wars 43 9.4 2 sales GPA, 0 sales Go Collect
Total 22 for GPA vs. 1 Go Collect
Batman Beyond #37 9.8 9 sales GPA, 0 sales Go Collect
Batman Beyond #37 9.6 1 sale GPA, 0 sales Go Collect
Total 10 for GPA vs. 0 for Go Collect
I have not been notified from Go Collect as a paying member with any press release that they are having trouble with recording sales. I will continue to subscribe to both sites, although I rely on GPA for more in depth accurate recording of sales.