Was the NES the closest thing to a monopoly as a system can get?

[masschamber]

Jo21 said:
it was a bad thing later though, nintendo monopoly was bad, they got money of each game sale.

when ps1 came by it was heaven to developers they could release more 5 games.

 

 amazing the way the genesis/snes era just vanished

oh yeah, the microvision had 100% share of the portable cartridge loading system when it came out in the late 70's