I have made the switch sail to power to sail, and now have both. Which must qualify me for some sort of dufus award.
First on getting your final boat. I've owned a Catalina 22, 25, Newport 30, Regal 20, Sea Ray 25, and several other small power boats. I really believed everyone to be my 'final' boat. I learned and discovered all along the way. All had reason to love, and reason to want more. But frankly it was great fun all along the way.
I think it's more about what you want/like. We actually use our sailboat as a cabin as much as a sailboat. You can get around on a sailboat with pretty limited sailing skills. If you pick things reasonably easily, you can function after reading a book, and getting some basic help for a couple hours. You aren't going to be the greatest or fastest sailor on the water. But you may not care. After all a sailboat at best only goes about 6 knots. So from best to worst you aren't screaming into the ozone layer, nor being the worst that you are not moving. After some time on the water you may decide you want to be the screamer. You may be happy just lazing around. Or something in between. There might even be a chance for your wife. My wife hates the bouncy frantic feel of the power boat, but loves the smooth quiet of the sailboat. The heel is a very odd sensation, but you can reduce or let out the sail to reduce that too.
The big difference in working a sailboat over power is just the hp to weight/size ratio. In the power boat you have enough power to immediately go in reverse or gun it to get out of the way or change directions. Not so much on the sailboat. So you just have to anticipate much more in advance that you will need to change direction. But then you are also gong much slower, so it doesn't take the power to stop. Somewhat.
The sailboat is more of a travel trailer too. With that comes systems that you probably don't have on the power boat. Pressure water, water heater, full galley, etc.... With that comes learning and the opportunity to fix broken things.
You can find tremendous options in your price range. I am in North Florida and commonly see nice older sailboats from 30 to 37 foot in your price. They will not be perfect. But would be functional. Part of the fun may be finding, learning about the different boats. Poking around boats is great fun - at least for me.
Good luck and like sailors like to say 'enjoy the journey' not just getting to the end. To include looking at boats, trying them out, and getting your 'final' one.