I saw one sell for over 50,000 last year. Great looking boat with the older 22' seacat hull. From what I heard it was a rocky boat from bow to stern because of the added weight of the cab. A close friend of mine went through all sorts of conditions with his cousin's 22 Hawaiian Seacat and said it was awesome for channel crossings but came up short when slow trolling in rough seas where it bit the next oncoming wave and it comes up the front of the cab. http://188.8.131.52/POWER/HiTechHaw...eaCatCabi.html
Not built anymore but a few are roaming around at that high price. If you can get the Force Marine Cat or the Glasscat they ride about the same with those cabs with the Force having the edge in the ride department from what i've heard.