RE: realflight?
I've been using RealFlight G3.5 (hoping to get G4 for x-mas) ever since about a couple months ago when I first got into RC. This has helped me a great deal, and if I keep it up - when I train in the spring, I'll solo in no time ! And to answer your question - YES ! With the G4, if you fly or are into float planes, from what I've seen online and in magazines, this would suit your intrests more than if you weren't into float planes. Although on G4 their is some non-float planes and non-float plane flying sites. I do believe G4 is still the way to go regardless of like or dislike of float planes. On G3.5 I mainly fly the Hobbico Nexstar but, I do enjoy flying the other ones as well. Although the simulator doesn't teach you everything - their is so much more to learn at the field. In my opinion any sim would help you a great deal - you don't need any fancy simulator to learn how to fly.
-- TakingFlight96