I'm starting to draw the line myself. I used to buy all the formats when they were released, but it used to be a regular CD, a special CD version and an LP, did I need all 3? No. But they weren't that expensive, the vinyl was still only €25 for double and triple vinyls and the regular CD in particular was half nothing. The prices of vinyls are laughable now, the Senjutsu colour vinyls were about 70 quid, and there's more than one version. I didn't buy the FC Senjutsu boxset, I didn't buy the Somewhere in Time Yellow vinyl ( they had already released this as a Walmart exclusive the previous year and I had that) and I'm not going to buy this boxset.
What tipped me over the edge on the boxset is the Amazon exclusive, which means you get fleeced on postage and import duties, I might have been stupid enough to buy these albums again if they were available from my record store at retail prices.
EDIT: I forgot to mention the main culprit, 5 different dvd/blu ray versions of Burning Ambition (plus streaming!)