Where do you buy your CDs these days?

A year or two ago I scored 155 CDs (a great mixture of jazz, blues and classical) on eBay for $65 + $27 s/h.  Among other great discs, the lot included Frank Morgan's "Mood Indigo" (ono the Island label) which, besides being a great collection of music, is worth about $20 on it's own. Great bargains to be had if you're willing to just..............shop.   

discogs.com

Here's a no-brainer:   go to your local public library, check out 20 CDs at a time;  preview in your car while driving over the next week or two.  Rip the ones you like at home, return all---FREE!!

Hi,
I buy used, mint or near mint condition CD's, from Discogs site.
I will go to Steve Hoffmans site online, to research opinions  on a particular CD I may be interested in buying. There is almost always a consensus, within the many posts, of what particular "pressing" ,of a certain CD, is the best sounding, and which suck: AM+ Japanese mini lp style, MOFI, etc., to name just a few.
You can then enter your choice into Discogs search bar, and find hundreds of sellers of the CD you want. It will list various prices, locations, and condition.
I click on $USD. mint or near mint, and I get a list, at various prices, and geographical locations of the seller, to choose from.
Very reasonable prices, and sellers have feedback listed by their name.
Very happy with the results. I have bought several hundred CD's, over the years.

To add:
You can usually preview the tracks on Discogs. If not, there is always youtube to preview first.