first time i seen/played an NES was at my aunt's house, late-80's. her kids had the orange/gray ZAPPER.
when my mom got me an NES bundle in the early 90's from a couple late-teen/young adult guys looking to get cash together to step up to a SEGA GENESIS,
the very large and generous bundle, for a mere $80/100, included a tremendous wad of good stuff, including the earlier two-tone gray ZAPPER.
sometime in the late 90's/early 2000's i hit a yard sale and picked up someone's small NES rig for like $8, including the later orange/gray ZAPPER,
and today i have both versions. i also have a SEGA master system LIGHT PHASER for the SMS i'll probably never own.
indeed, i missed out at a yard sale once on somebody's very nice little MOD.1 SMS bundle for way less than $10, IIRC. i kick myself profusely to this day over that...