My current number of bikes is N-3! I periodically fix up some old bikes and we donate them to kids or immigrants needing a way to work. Today, I was relieved of a very heavy, low end mountain bike, a BMX department store bike and a 26 inch Shimano Positron Front Freewheel bike from the 70's. As my son said, "gee Dad, you have a lot of bikes!"
So, since I never rode them, they are not in my official count, but I miss seeing a basement full of bikes, no matter what kinds. Time to go hunting....