I purchased a well-used Achilles LS-4, which is about 8.5' I think. It lives in my quarterberth "garage," ready to go for my next Catalina excursion. I just roll it up and store it in a spare sailbag.
I should say that I'm a big fan of the older hypalon boats. It's possible to pick these up quite cheaply if you keep an eagle eye on Craig's list. I paid $25 for this one in 2019! (Well, actually I wound up paying the guy $40, because I only had two $20's and he didn't have change!
But I wasn't going to quibble.) They last and last and last. It's well-used, as I said, but holds air like a boss. It's also just a tad ugly, so there's a built-in theft deterrent. The one problem it has is that the fabric floor has a kind of leprosy that sheds little rubber particles, though the underlying fabric is quite intact and it doesn't leak any water. If I wanted to use floorboards in it the leprosy would be a non-issue, but I don't like messing with floorboards because it's fine without them for just going from the mooring to the dock and back.
I had another cheaply purchased ($50) used hypalon Avon R2-80 back in 2008 that I sold with my previous boat, and I also liked that one a great deal. It did not have any leprosy and also held air perfectly. So being dinghy-less at that point, when I bought my Ericson I thought I'd treat myself to a new PVC boat, and purchased a Baltik. It didn't last all that long and started to have failures at the seams. So I figured I'd go back to my cheap hypalon roots, as it were, and it's worked out well for me so far.
I'm sure a PVC boat can be just fine, by the way, and I'm guessing the WestMarine product is better than what I got.