I know what you mean, when I was growing up that was all I saw. My dad and I would go to the local LHS which was Hills Hobby Shop and at that time they were in Park Ridge,IL. I was in heaven...heck what kid isn't when they are surrounded by trains and being out with dad. I must admit that I really was not exposed to the 2 rail market in any great fashion until I joined this forum and saw the amazing work being done....and even then I wrestled back and forth with it but ultimately realizing I was just trying to "talk myself" in to 3 rail being ok, and while it is for many it wasn't for me...so I switched and since that point I have never been happier, I love the satisfaction I get from it.
My kids have a smaller 3 rail layout I am working on with them and I have my 2 rail layout....I have both worlds and it's a funny thing, with both layouts being right next to each other I can easily look back and forth at them, side by side...and in that setting the differences leap out and my kids are actually drifting over to the 2 rail layout more and more.....am I happy they are drifting that way?...Oh yes....why? So I can have the space their layout is eating up...