Can't really give you feedback on the boxblade. However, I did get the deluxe seat on my CT230 and it was $200. I can't tell you if it's worth it because I never sat in the standard seat. The reason I purchased it was because my local dealer had one on his lot that had the deluxe seat and it didn't bottom out. Maybe a silly reason but I'm a big boned guy (300lb) and the seat has an adjustment for operator weight. Needless to say, it's very comfy and roomy for BIG people which is hard to find. It was worth the money to me!
Doug