I've been looking to move from and elec Brinkman to a propane smoker. I've seen the GOSM "Big Block" set-up at Bass Pro ($199) and was leaning toward this unit. Then started reading about the Browning (Camp Chef) Smoke Vault 24. Went to Gander Mtn. and they had the unit ($399) in the box but no display. What makes the SM24 worth/cost twice as much as the GOSM?