IMO, PIA (pain in ass) factor is the number one killer of sailing time. Keep it simple works well here. The smaller boat, kept at the house will have a much lower PIA factor than a larger, more complicated boat, kept at a marina. And, a whole lot less expensive too!!!!
And while the OP will eventually gain enough experience to single hand the larger boat, that's not happening anytime soon. So, unless he can round up at least one willing crew member, he's not leaving the dock. That could put a serious dent in his sailing time.
The smaller dinghy will enable him to sail whenever he wants with as little effort as is possible in sailing.
As for the dinghy being boring, i don't understand this?
Although there were several different factors that went into my decision, this was probably the most important one for me. When I am the lake, it won't just be to sail. I will have family responsibilities, too. And, for the most part, I expect that I will be single-handing.
That means I need a boat I can rig without too much time or hassle.
So, after a ton of research, I bought a Capri 14.2. So far, I've sailed with it well over 400 miles, but that was trailing behind my son's truck.
Lake Murray Sailing Club in SC is putting on an Intro to Sailing class this Saturday, and I expect that it will be the best $45 I've spent this week.
Wish me luck, and thanks for all the input. It has been helpful.