One very good option is DVDShrink---$0.
The quality will be just as good, and it is a very easy program to learn and use.
It doesn't include a burning program however, so you'll have to use whatever came with your drive, like Nero or Roxio. If you have Nero, the latest versions of Shrink can use it to burn.
Even if you don't have a burning program, I'd use the money you're thinking of investing in a DVD program and buy Nero, then use Shrink.
You can find links to it at various sites, including www.dvdshrink.info