If you are really happy right now with the values, I don't think going full strong in to
DVC makes a lot of sense.
One thing to consider is to buy a small contract via the resale market. The investment will be small and allow you a chance to add to your current trips with DVC.
And, as a member, you would be elgibilge for any of the perks that are available. Right now, there is a $100 discount on AP's. Depending on how much you travel to WDW, this could be a good reason to starting small.
Obviously, something about DVC has caused you to consider it and trying out the resorts might be a great way to know.
We bought DVC at BLT, not so much because we wanted to save money, but rather to increase the type of rooms we could book for about the same money we were now spending. Instead of just being in a hotel room, we can now be in a 1 bedroom.
Good luck!