I might be going overboard on this whole idea since I also use the DigiQ DX2 temperature management system which has a pit probe. I just like the idea of having a second ACCURATE thermometer installed to tell me temps independently of the computer. And I also like the way the installed thermometer looks on the unit.
It's like airliners with GPS navigation units still having vacuum pumps running their analog instruments. You don't need them -- until you need them.
WSM 22.5"/DigiQ DX2
(built myself though I'm a moron)
Weber Performer 22.5" - Charcoal
Weber Genesis E-310 - Gas
Weber Smokey Joe (A RED one!)