Well, I don't wear suits. I don't mind spending on quality... but $1,000 seems a bit much for me to wear maybe once a year.
On the other hand, I don't want to look like I'm dressed in a paper bag.
Let's roll this train back a bit...
OK, why do you want a suit?
Serious question, is it for weddings, interviews, funerals, Easter Sunday?
Why not consider a GOOD sport coat? They're far more versatile, cheaper, and you don't need to worry about tailoring or canvasses. A good sport coat will look far, far better than a cheap suit. Plus, it's really easy to spot a jeans and Tshirt man who's wearing that once-year-suit - not a good look.
I have two (cheap) suits - one black and one brown. I don't wear them unless it's a very formal occasion. I wear nice pants (e.g. flannel wool) and jackets. I have nine - two tweed, two corduroy, two brown houndstooth, one navy blazer, one seersucker, one grey. I got most of them from thrift stores or Ebay where you can find good stuff - Harris tweed, Brooks Brothers, RL blue label, etc. for under $30. If ordering online, the trick is to (A) know your size, (B) find that quality vintage jacket with the crappy pictures such that everyone else passes it up.
BTW, every man should own a proper navy blazer - not that Ralph Lauren green label crap, either. Sack cut, patch pockets, three-roll-two buttons; that's the traditional look you want. It can be worn with anything from flannel wool to jeans. Just add a OCBD and your GTG.
If I ever end up in a situation where I need to wear a suit regularly (e.g. a courtroom or wall street), then I'll spend $$$$. With suits, it's go big or go home. I'm thinking sharkskin... yeah...
And for Pete's sake, stay away from polyester!!!