ok let me edit my question to what good quality suits fall sub 500 on sale?
Since I've seen sales go as high as 75 to 90% off on suits, that includes a lot of great suit makers. You can find a list of reputable suit brands on this site, but you're going to have to find them on sale yourself.
Urgent question before I place an order: does the size chart/measurements on j crew website (or any other website) refer to the item's measurements or the supposed measurements of our body to wear that item? I'm confused because the numbers are in ranges (eg chest 32-34). Thanks!