POWER MTS 275

Looks like everlast is the only option for canadians due to features and price. can't be beat.

I'm looking to buy the PowerMTS 275 Lightning on my July 31st pay date.

I'm not a TIG expert but I plan to be for the rest of my remaining years. I want the best machine possible.

Are we certain that this unit only going down to 20amps AC TIG will not limit my abilities to TIG weld anything I want?
Are the PowerTIG units much better at TIG welding? Are there any extremely versatile and experienced TIG welders here that could clearly explain to me if and how significantly better the PowerTIG units are over the MTS 275?
You might be wondering what I want to do.
I want to be able to do everything possible TIG and awesomely without regretting not having bought a better TIG unit. Artwork, bicycle frames, fences, automotive, etc.

What about the stick Welding abilities? the website doesn't say much. Are there any limitations and how significant are they?

Is this a USA forum?

If and when I order the 275 are there options to switch out the torches for better torches instead with price difference fee?
Are there recommended torches instead of the included torches?

Thank you kindly for your consideration.
Mr. Badger