Haven't decided on era and prototype. Looking to see what comes of the idea of a local modular club. Total Locos in 3 rail is 10. Not too many. I will be running DCC.
As for what is driving me to 2 rail, it's the realism and detail I want to get into. In the end, although the 3rd rail in and of itself doesn't bother me, it really creates more problems than it solves. Originally it was an ingenious solution to an electrical issue, but these days it's a really antiquated way of managing that problem.
I launched back into O for my oldest son, now 11, when he was 2 with an MTH Railking Daylight set. I didn't know a lot at the time as I had not been into O since I was a kid. I was at the time deep into a 300 square foot HO layout with my dad. I liked the features the MTH set had for my son. I really liked the PS2 sound and smoke and then began to learn how far O had come. When we bought our house I began adding more 3 rail items and finding more about the scale items offered in O. I had a layout under construction in 2013-2014 then a house fire in 2014 put that on hold, I also lost a fair amount of stuff as the hobby room was the main one damaged in the fire. When I got back around to it in 2015 I kept at 3 rail O but toyed with going N or HO (my dad and I had dismantled an sold off the HO stuff, he lost interest). As time progresses I lost interest in non scale items and have been pushing toward scale. But I also have not been satisfied with what I want and how much space I have. I have a thread about this in the HONGZ forum. I have liked the idea of 2 Rail for a while but also realize the space issue won't go away anytime soon. Fred Swain reached out about starting a local modular club which peaked my interest. I wasn't interested in the local O gauge club in Houston as their focus seems to be more traditional and tinplate.
So to satisfy my desire for the larger scale, this modular club idea would work. To satisfy my desire for more prototypical things in my allotted space, N scale will work.
There comes a point in modeling were the many non scale items tend to stick out more and more. I thought about 3 Rail Scale but figure at that point why not just go 2 rail? Final point is the two control systems in 3 Rail. I like if I go 2 Rail and N Scale or whatever, I can cover it with one system.
The last thing I like about 2 Rail is it will force me to narrow my focus some as Mode RR ADD is an issue I deal with. I looked also at S Scale, but to me it's more of a compromise. Bigger than HO but with very limited offerings, not as big and impressive as O.
Thanks all to the insight so far. I will most likely cash out of everything and go from there.