Loads of free slips down here
I had a yam 380 s with a 25hp 2 stroke, went really well and enjoyed owning her. Used to transport flat or on the roof rack. Got fed up blowing her up during the summer so ended up inflated against the house.
Then as I was using her loads bought a trailer as it was easier than the roof rack, as I now had a trailer it seemed daft to deinflate for winter so left it all together with a cover. Insurance was around the same as the rib that replaced her, storage costs the same, once I'd gone for a trailer then launching issues were about the same so she had to go
Fun it was, still times when doing safety events when the sib is great - and gets borrowed but in the main I'll stick with the rib.
If I had no toy and had to buy one I'd go with the sib again as it allows learning time with smaller hp engines but there is no value in selling a rib to get a sib unless the end use changes.