I've got well over 2000 saved up as well (I think). And I did it mainly for the SG scratches which I read about a while back.
But buying SG is expensive. Look at the SG prices and then look at the prices in the fresh finds shop. Compare this to prices of buying AC. It is lop-sided.
JP has more ways to earn SG. Not sure how these were released in terms of timing. But if you couple that with high prices in the Fresh Finds shop, people who aren't like you and me are going to be struggling.
Willingly playing Sega's game is the player's own fault. I'd advocate on picking and choosing what you really want. But people are going to do what they want to do. In this case, they want these cosmetics. Prices do not seem reasonable to me. And even if I'm saving my SG up, there may be something I want down the road without blowing a bunch of SG. It serves to benefit the community to get this addressed by Sega.