plasma cutting vs laser cutting, which one should choose?

We're selecting the equipment between plasma and laser, and get confused after reading this post:
www.machinemfg.com/laser-cutting-vs-plasma-cutting/

Can you guys give any suggestions?

what will you use it for?
initial budget?
ongoing budget?
users?
material?

-The original post is considered spam,
-the link seems ok,
-info on that page is erroneous on some points from a quick glance
-the rest seems ok