The reason it failed is because Conservatives understand that Boehner is only working for the extremist teaparty and not their constituents who will ultimately vote them in or out in 2014.
In the first place, I'd challenge you to find any REAL Conservatives in the Republican Party today, but that would be a subject for another time.
In any case, you've completely misread what's going on in the House.
Boehner was given the speakership by the party's old guard and he only had one job to do: restrain the Tea Party troglodytes until Obama could be voted out of office. The party insiders, bag men and corporate sponsors were, and are, afraid of the real Tea Partiers (most of those elected under the Tea Party banner are not real, but some are), but they wanted the votes of their supporters until the time came to ditch them.
But, that time never came. The party, their sponsors, and especially the Koch brothers faction of Neo-Fascist's, poured everything they had into defeating Obama. They literally threw the kitchen sink at him, telling any lie, obstructing any bill, spreading any rumor. They spent billions....and failed.
Now, the old guard doesn't know what to do. If they side with the Tea Partiers who are about to wreck a compromise, they risk taking the blame for a deeper recession and will pay the price in 2 years. But, if they side with the Speaker, they risk being seen as traitors by the base and will pay THAT price in 2 years. They're caught in a trap.
What's more astonishing is that it's a trap of their own making! They've spent the past 20 years, and especially the last 4, building a base of radicalized haters afraid of Obama and everything liberal. They've assiduously created that via their web of influence peddlers, beginning with Fox and carrying right on through hundreds of right wing websites, on the supposition that they could control it all.
Now, they find they CAN'T control it and the party is eating itself alive.
It's one of the most profound failures in American political history and, sadly, the rest of us will have to suffer for it.