Suggestions for a new rig?

I've got about 600$ to work with and I'm looking to get a new rig, I have an Arrma Granite but I've been plagues with constantly breaking it. I swear it's broken down more than it's up. My local track has berms tabletops and just and I'd like something more sturdy and a bit easier to work on. The granite is my only rc so far so I don't know if they are all annoying to work on or not, if they are disregard that. Im relatively new to the hobby and would appreciate any suggestions :)