60%? Thats too much. In that range there might be many other models. Comparing a phone which costs x price and another one which costs x+60% doesn't seem fair.
I know it doesn't seem fair, but just look at the plethora of roms available for LG Nitro HD
http://forum.xda-developers.com/forumdisplay.php?f=1448
I don't think Pantech Burst will ever be able to compete with that. Dev support for Burst is Minimal to moderate with no more than 4 ROMs(Gizmo, AOKP,Unofficial CM,Unofficial PA), all not quite stable.
Nitro Hd has plethora of ROMs and even a custom kernel that allows undervolting.
I think in the long run Nitro HD is more like what ZTE Blade was, a little overpriced yes, but you could still update and work on the phone 3 years down.
And Nitro HD is repairable from local LG Service
But yes, stock phone value for money win goes to Pantech Burst every single time.