Re: How "trailerable" is a Catalina 25
I've got a Catalina 25 swing keel that I keep on a trailer. I keep it at my lake with the mast stepped, and just tow it 200 yards to the ramp to launch. I use an older Tahoe which has no trouble at all getting it in and out. The two times I've taken it on the highway, however, I rented a 3/4 ton pickup, which also had no problems pulling it.
If you are going to want to enjoy the boat on a trailer, I would strongly suggest you find a place where the mast can be left up for storage. I have never towed mine for a weekend trip anywhere as I think I'd have to be on it for 3 or more days to justify the hassle of restepping and retuning the rig. In that case, though, it would be well worth it for a fun destination.
As an FYI, based on what I've read, these things run about 6500 lbs including the trailer when ready to go for a trip. Never had mine weighed, though.