For that price, I'd say grab it. Someone will!
I noticed a chancer on eBay who's asking that price just for the last disc of the set.
I've been making my way through the set starting with pianists I'm the most familiar with. The Earl Hines trio was predictably great. This purchase also led me to revisit pianists I hadn't listened to in years, like Ralph Sutton, Jess Stacy, and Joe Bushkin. When I went for this set, I already owned the latter's Piano Moods album on a CD that also included his follow-up After Hours, which adds in some fine playing by Buck Clayton.