There's another thread on this topic as well--look for it. Also, try Music Direct in Chicago. I think their e-address is amusicdirect.com. They do offer a slight discount over Acoustic Sounds.
Places to buy SACDs
I have tried HMV.com and they have very good prices but their titles seem to be limited to Sony/Columbia/Epic. Very little if any of anything else. I have gone to Acoustic Sounds and while they have many, many titles, their prices are full retail plus shipping. Do you have any suggestions of online sources that have a combination of good price and good selection for SACD needs?