BY RYAN CRACKNELL
GETTY IMAGES
WHEN THE TOPPS LIVING SET LAUNCHED IN SPRING, 2017, IT BROUGHT WITH A CONCEPT THAT HAD BEEN TRIED BEFORE — A NEVER-ENDING CHECKLIST — BUT WITH THE ONLINE-ONLY, PRINT-ON-DEMAND SPIN. IT WAS MET WITH SOME INITIAL TREPIDATION AND FOR GOOD REASON. IN THE PAST, “LIVING” CHECKLISTS HAVE EVENTUALLY DIED. ALSO, WITH NEW CARDS EACH WEEK, THE COST ADDS UP.