Interesting question.
I’m usually not someone who will wait in line to pick up a console on launch day; it’s a waste of time.
The only one I did that with was the Dreamcast, but I happened to work at a Software Etc store at the time, so it was simpler than waiting in line with the regular customers.
So, here’s a list of when I got certain consoles (the ones I remember, at least)
Atari 2600 - bought for me by my parents maybe around ‘83
NES - got one probably in ‘88, after I played my friend’s.
Game Boy - got one for Christmas ‘89
Genesis - bought it from a high school classmate, sometime in late 1990
SNES - got one for Christmas ‘91 (but I secretly got it out and played it beforehand
)
PS1 - honestly don’t remember when I got this one.
Saturn - bought from Toys R Us on deep discount shortly before it was discontinued
PS2 - got one shortly after Christmas 2000
Dreamcast - as mentioned, got it release day
Everything from original Xbox on, including PS3, X360, Wii, PS4, and Switch were bought long after release.