I'm a big fan of corsets, even to the point where I admit I own a corset based undergarment and I plan to buy a proper corset later on (I want a specific men's corset, so... )
Anyway. It is worth it to pick up a cheap underbust type corset to slowly train your waist to handle the garment. They are tough on your body and your bod needs to adjust to it before you can start thinking of tightening it to any substantial amount.
I personally do not find it attractive, in one bit, when women have clinched their waists to such a degree that they've pushed their organs up and down and permanently altered their shape to something not quite "human" looking anymore. (I'm sure you know what I'm talking about if you've googled it a fair bit.) But! if that's something you're after, then yes, my suggestion still stands. Start by training your body with something cheaper before shelling out over a thousand dollars for something fancy. After all, not everyone "can" train themselves to do it and if you experience a lot of discomfort and loose interest, you aren't more than maybe a couple hundred dollars out.
I personally look mostly at leather corsets so I might not have a link for you, but if you're interested, toss me an email and I'll shove my links at you. Most of 'em are in the US.