I also like the idea of not having to engrave my name on it.
Honestly this should be a minor consideration. Its ~$50 to have done, and you can get it done in an inconspicuous location.
Either way you go (factory or not), an SBR has very poor resell value.
And the only mods I would do to that model is new rails and a flip up rear sight and optic
Let me give you an example of what I was talking about:
Spike's Lower - $80
Spike's Enhanced LPK - $150
Spike's CTR stock kit - $150
Engraving - $50
So a very well appointed quality lower with some enhanced features for $430.
Add in this complete upper: Spike's Tactical 11.5" URX II 5.56/.223 Pistol/SBR Upper Receiver
Now you've got a complete Spike's Tactical SBR for $1,149 (about the same as the $1,200 LMT).
The difference, however, is that you now have an upper with a $300 KAC rail system with built-in flip-up front sight, and enhanced features all over the gun.