Follow-Up:
Like Eli said, don't discount the Rialta without thoroughly researching it and the other choices. If you're looking for an alternative to a Rialta, I think you'll be disappointed in the RoadTrek -- they're a Class B instead of a Class C like the Rialta, and you'll know it with one look inside. I've spoken with a couple of different people who owned a RoadTrek and wanted to "upgrade" to a Rialta for more room. There are other namebrands that are similarly sized as the Rialta. The primary differences seem to be that the alternatives are (1) usually taller, (2) have Ford or Chevy chassis instead of the Rialta's VW, and (3) they aren't as streamlined or "pretty" as the Rialta. Some of that will be a positive or negative to you depending on what you're looking for and what you've heard about the Rialta. Good luck with whatever you choose!