Always go bigger on a welder. I own a 210... Miller. I'm a Miller kind of guy - but that doesn't really make any difference.
What you will find out about owning a welder - is that there are LOTS AND LOTS of things you can do with it... and your friends will have projects etc... so for the lousy $100 difference between the smaller machine and the larger - go larger 'cause the last $100 is insurance on the first $1000 that you'll have a machine that can do it when needed.
Owning a welder - and being good with it - is like owning a pickup... "you be da man" (when your friends need you).