I had a boat at one time, now I just use a kayak.
I'm using an Ocean Kayak Scrambler XT with a tank well.
It works really well for our area and the type of diving we do.
All my buddies use kayaks too.
It's easy enough, I just strap down my rig in the back tank well and all my other stuff like fins, weightbelt, mask, gloves, etc. is topside on the kayak up front also strapped down. I don't open hatches out in the ocean, ever. I even take a small hand held depth sounder so I can read the depth. I pretty much have it down on getting geared up and doing my dive. It's easy, put fins on, then straddle the kayak forward to drop the anchor, put accessory gear on, get in the water and put rig on (with the wing slightly inflated), dive. Coming back I just do everything in reverse.
I use a small anchor I made out of re-bar with 1/4" line wound on a handle.
Towing a boat got to be a hassle just for two dives. The gas wasn't so bad for the boat but it did drastically drop my mileage on my little Toyota Tacoma towing it. It's the maintenance on the boat, trailer, motor, electronics, electrical system, registration on the boat/trailer, etc. that will bleed you dry. It was also a hassle finding a ramp close to where I wanted to dive. You'd think a boat would give you more range, and it does, but at the expense of lot of extra time on the water getting to the spots just because of the locations of the launch ramps.
Don't forget the clean up afterward on the boat too.
I just found that kayaks are so much easier and trouble free, even though getting out to the most extreme sites isn't really an option anymore, we are happy staying closer in and diving within the range that a kayak gives us.