Miles Davis Kind of Blue...any options on cd?

The cheapest way is to buy the Remastered Columbia/Legacy Edition available at any major CD selling store. It retails for $11.99 but you can often find it discounted for less than $10. Used CD stores should have it even cheaper. You want the 1997 edition that has the Bonus tracks because Columbia issued at least two editions before. See Amazon.com and see all the comercially available editions without scrounging among the "collectables". All the earlier recommendations are good but more costly and for the fanatical audiophile.

I've heard the remastered Columbia (with corrected speed, and bonus tracks). It's miles (no pun intended!) better than the older Columbia, and the bonus tracks are a nice addition.

If you're into vinyl, I believe that there is a Classic Records LP.

Well, I own every re-issue of the red book CD's discussed here and several others not mentioned including three Japanese import CDs and the Classic vinyl 33 rpm reissues and the 45 rpm version. As for the CDs, there is one that I think is superior to them all by a small but significant amount. It was a Japanese Import DSD remaster and the catalog number was SRCS 9104. Other than that the columbia remaster that is available everywhere is, in my opinion better than every other CD issue except this one.

One other Japanese CD import option for you: SME Records catalogue number SRCS 9701. A very good recording in my opinion. SME stands for Sony Music Entertainment (Japan) Inc. This Kind of Blue is part of SME's "Master Sound@ series. The series also includes a great recording of Dave Brubeck's Time Out (catalogue no. SRCS 9631).