Nutloose,
I've been to Real Simulation and flown their 737, just for grins. I had a good look at both sims and they look quite good. However, don't expect a fully-fledged flight sim. They have motion and reasonable visual, but it looks like only just enough switches and displays work to allow the punters to get an idea of what flying these types is about. The F4 has no rear seat or radar.
That said, they are good fun and they do have some good deals available if you call or email them. Having never landed an airliner before both Mrs C and I had 30 minutes each of handling the 737; we even did a few engine fires, aborts, single engine approaches and the like. Now I know how easy it is!!!
Never thought I'd PAY to go into a sim for FUN!