The short answer is around $20-80 for original LPs in mint condition or somewhat less for CD re-issues in mint condition. The main two studio albums are "The Atomic Mr. Basie" and "Basie Plays Hefti." For real completist collectors, however the longer answer is around $400-$600 for the Mosaic Boxed Set of Complete Count Basie Roulette Studio recordings (10 CD's) and $200-$350 for the Mosaic Boxed Set of Complete Count Basie Roulette Live Recordings (8 CD's). Why so expensive? Both boxed sets were issued in limited pressings - 3500 for the studio set and 7500 for the live set. In addition, Mosaic re-masters the CD's for superior sound to the standard CD issues and provides archival quality documentation, include complete notes, essays, discography, chronologies, and photos. Of course, the complete sets include multiple versions of all the Hefti-Basie collaborations as well as the other great arrangers of the New Testament Band, such as Frank Foster, Benny Carter, Thad Jones, and Ernie Wilkins among others. For some earlier Hefti-Basie collaborations you need the Columbia Boxed Set (4 CD's) and the Mosaic Verve Studio Set (8 CD's). The latter is particularly valuable for the superb Quincy Jones arrangements for Count Basie, as well as some outstanding vocals by Jimmy Rushing and Joe Williams.