Sega Dreamcast turns 18 today (Western Release was 9/9/99).

[VGPolyglot]

Cerebralbore101 said:

RolStoppable said:

There are hardly any parallels between the Dreamcast and Switch.

Also, selling nearly 10m units in three years is Wii U pace. Extrapolating the Dreamcast's sales to a five year stretch would make it finish behind the GC, so you made an absurd comparison.

But yeah I take back the amazing sales comment. Now that I've sat down and done the math it looks like it would have ended around GC level sales, if it had a 5 year lifespan. 

That's assuming it would have sold at the same pace as the first half of its life. It didn't have to compete with the Gamecube and Xbox, if it survived longer it would have had to fight against those as well.