LMLs can be had for the same or cheaper. I've been looking a bit and found a lot of CCsb/lb ltz/slt/denali trucks with 160k or so for 26-27k. LBZs are ridiculous, because its the newest you can go without a DPF. If you are able to delete, the LML is the best there is currently in my opinion.
04.5 Silverado 2500hd ECLB LLY 190k and counting
Mods: 5" MBRP Straight Pipe, Leveled Tow Mirrors, EGR Blocked, Magnaflow Downpipe, CTS2 w/ EGT probe, S&B Mouthpiece, PCV Reroute, Bilstein 5100s, PPEI EFI, Fass 150 Lift Pump, Kryptonite Tie Rods, Cognito PISK, 20x10 -19 Gear Big Block 726mb, 305/50r20 Toyo Proxes S/T, Tbar bolts removed, Drop Shackles.
Future Mods:EGR Delete, Built Trans, Load Level Bags.