How come every gen has one dominant console over the others?

[UltimateUnknown]

bananaking21 said:

Kasz216 said:

bananaking21 said:
how on earth is 4th a gen with a highly dominant console? its just 9m between snes and the genesis.

I'm seeing ~20 Million based on the VGchartz numbers.  

29 Million vs 49 Million.

 

Do you have different numbers?

im using the OP's numbers. 

No, he's right. I wrote 39 when I should have written 29 for Genesis. So yeah Genesis did about 30 million rounded while SNES did about 50 mllion. There's about a 20 million gap between them, not 10 as I wrote wrong previously. I've corrected it now.