I have been using a tilt trailer for about a year now... I keep my car obnoxiously low and was not feeling some of these ramp setups people use to load their cars up.
I was patient and kept my eye on all the local classifieds. Sure enough, a single-car tilt trailer with a toolbox and winch popped up on Craigslist for $2500. I rushed over, cash in hand, to make sure I got it before anyone else! It's been a LIFE SAVER. I can get up and down the trailer with no ramps, the winch has come in handy as well.
I got an MX Speedloader. Easy to use, very solid, a little heavy so it pulls nice (not much bouncing around). Only downside I have seen so far is that the hydraulic jack for the trailer needs to be serviced. Don't rush into buying a trailer, it is a piece of equipment you will likely hang on to for a long time. Save up your cash, lay back, and wait for the right deal to come around. Good luck!