Phoenix Cruiser has been around for a fair length of time; according to their web site, their first model was introduced in 1997. Coach House is another company that's in the same tier as Lazy Days and Phoenix Cruiser, from what I understand. None of these three make any super-C motorhomes to my knowledge.
With your price range, you're obviously looking for a used motorhome. I'd pay at least as much attention to the quality of maintenance and upkeep on the particular unit you look at as to the quality of the brand name. A lesser brand in better shape, with care and attentiveness towards the ongoing maintenance, will be better than a somewhat better brand that has been abused and/or neglected, generally speaking.