I agree with Narrod and Hdm.
I have literally tens of dozens of OJC releases, both with and without bar codes. I have quite a few of the Contemporary label releases that preceded the OJC's and they are wonderful. Some of the second series Contemporary sound better than the originals (which I also own quite a few of).
There were also a series of OBC, (Original Blues Classics) and they should not be overlooked either. Truly great music from some of the premiere blues artists of our time.
For my favorite artists, among which is Bill Evans, I purchased the 45RPM Analogue Productions redo. This is partially because of the improved 45RPM sonics but also because of Steve Hoffman's mastering. Steve has THE magic touch, always maintaining a perfect balance of extreme resolution with exquisite tonal balance.
These are expensive but for my favorite artists Im going to have it both ways. Besides, I can always sell them later if I feel they are not worth the shelf space, so far everything that Steve Hoffman has remastered sold out completely and then prices climbed to the sky.