No. Chasing Benny is just the first part of the main quest, and he is a minor antagonist. From there the main quest splits into different lines, to support different factions for the final part.
He doesn't finish it.His laptop was stolen along with all his fallout data.
They end up crashing regardless and the ghouls end up coming back to Novac after the battle of Hover dam.
The only enclave present in New Vegas is the remnants for arcade gannons special quest which can be activated near the end of for the republic part 2 or the house always wins. If siding with yes man then halfway instead of near the end.
All the DLC packs are side missions only and must be completed before you end the game. None of them extend the main quest like Broken Steel did for Fallout 3.
Benny Profane ended in 1990.
badly
Fallout - RTÉ drama - ended on 2006-04-24.
The Jack Benny Program ended on 1965-04-16.
No you do not die. If you play fallout 2 it tells you the vault dwellers fate.
Crash Vegas ended in 1996.
Papa Vegas ended in 2000.
Dirty Vegas ended in 2005.