I have a couple of spares, but mainly just for disc-based systems. My wife had a couple of consoles before we got married that merged in years ago, and I keep them around, because PS2s are flaky to begin with. A few I keep to have in different areas of the house. There is a Wii of some kind in the basement, main floor, and my bedroom, because my wife and I like to play Fortune Street together from time to time. We have an extra Switch to do 2 player Mario Kart Live Home Circuit, amd multiples of a few others like that. Generally, I tend to give spares I don't intend to use as gifts so other folks can enjoy them. My brother is the most frequent beneficiary, getting an NES, Jaguar, PS2, Dreamcast, Pas1, 3DO, and lord knows what else over the years. One of my nephew's friends inherited one of my Gamecubes that I modded to play imports, because he's a good kid taking an interest in a lot of neat directions.