Yeah I agree, if you’re a completionist collector these limited releases are a total nightmare. Just keeping track of all of them is already tedious. However if you’re a collector that only buys selective titles based on preference then LRG provides options to those collectors to own and collect a physical version.
I only buy and collect games that I play or see myself playing, so I pick up a handful of LRG titles throughout the year. So for a collector like myself, the appeal is there for me to own a physical version over digital for the titles I am interested in.