I've said it before, and I'll say it again. If you're looking for a small power boat for daytrips, you can't beat a Chaparral such as the Chaparral 235SSI. Chaps are generally more expensive than other brands of the same style and size range, but you get what you pay for in quality and details. And just like a car, if you buy 'used', you might find a gem and save a few bucks.
For example, a search of Google helped me find this pre-owned 24ft Chaparral 235 SSI. The owner put enough pictures up to give me the confidence that the vessel is in near-mint condition, and a steal because (as usual) the owner "must sell."
Check it out, if it's still available, and see if you agree: