Obligatory "owned consoles" list.
In rough generational order. These are systems I still possess to this day, mostly in storage. The Atari 2600, Turbo Grafx 16 and Game Gear were sold off long ago. The original model Xbox was traded in towards my (first) 360.
Notes are given for multiple duplicates and hardware revisions. Most are approximates, as I'm too lazy to actually dig through my storage to count exact numbers.