Buckeye lake is a great party lake but VERY shallow. Any deep V boat and you will have issues grounding out and fucking up your prop(s). I prefer to go there on my buddies boat and bar hop and not worry about messing mine up.
If you really want a nice family boat to grill/fish/tube and party on, and don't really care about skiing, I would suggest a nice 18-22ft pontoon with a 150HP engine. Plenty of power to tube and get around the lake with tons of room for your family, friends, and dog.
A coworker is in the same situation as you and has been having great luck finding 1-2yr old used pontoons that fit these criteria for 15-22k. And they hold their value fairly well. They also are not terribly heavy so you don't need a full-size truck or SUV to tow.
Hope this helps!
Marc