All due respect, but the internet makes finding this stuff easy. The set can be had for $30 via Discogs:
https://www.discogs.com/sell/release/11184899?ev=rb
This was mentioned in another thread on this very forum only a few days ago!
I can't decide if this, and the various LIHS LPs will eventually become rare/valuable (like Ringleader, which I had in my hands not long after it was released and was easily had for $25 but didn't buy). Even World Peace... is starting to creep up (but findable for a reasonable price if you look around a bit).
While on the other hand you'd be a sucker to pay more than $20 for Years of Refusal.
LIHS - they were blowing them out one Ebay at one point for $8 and that singles box - for something limited to just 500 copies by an artist with a solid fanbase having that sitting around at $30 (there's 32 of them on Discogs) I have to wonder if it will stay cheap like YOR has.