Best deal looks like last year's Release 1.0 [diamondback.com]
for $1250 or Release 2.0 [diamondback.com]
for $1700. Last year's Catch 1 and 2 (more or less 27.5+ versions of the Release) are also on sale, but the discount isn't as good (near the regular Corp discount price).
Note that these prices require the Corporate discount code (which has been described in other Diamondback threads on SD).
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.