Who are the model railroders and railfans ?

My dad was a big HO guy in past days and he always regretted having so much in HO that he felt he couldn't make the switch to N so he could fit more into a layout. So from his regrets to your ear, pick N if you like layouts with a lot more features in the same size.

My brother used to own a hobby show in PA and it included the model RR clubs. Some of them had standardized table specs so you could go to a meet and plug your layout table into other's and then have fun running your trains on a much larger layout. There probably is a club like that near you.