Personally, I would wait as long as it takes until A - I find something I love at my budget level or B - I can save up for exactly what I want. Some things you shouldn't just settle for, especially if you're not in a deperate situation. I think you should really love the glasses you get ... I've been miserable stuck in certain glasses before.

Here's another link to check out:

http://www.overstock.com/Cloth.....ubcat.html