The cost is actually pretty reasonable. Not only are you getting direct conversation with the lead developer, who actually listens to your input and suggestions directly -- let alone ubbdev.com which helps with special needs -- you have a very helpful community here to back you up.
I've read the forums of other products - and you have to agree they're often full of (how should I put it...) kinda dumb questions. I haven't seen that here at all. Read through these forums and you'll see...
As for bug fixes - they've been on top of things regularly since I've been involved (about 6 years). Granted, most of the energy goes to the latest versions, but that's understandable.