Big industry is on the side of pushing for Obamacare, since they are the ones who got to write it.
http://www.gooznews.com/node/3045
However, I agree that the 'perfect' case for insurance would be to have Obamacare with no competition from a public plan.
That is not the objection you are hearing at town halls except in VERY rare cases, however.
You are hearing no Obamacare, neither with public option nor without. And polls show that the more you know about it the less you like it. And a majority don't like it.
Go to opensecrets.org to find out who got the money.
However, the Blue Dogs are from conservative districts, and are worried that no amount of funding will save them if they vote for Obamacare.
I think they are right.
There are neocons (our version of your Blue Dogs) who would also sell out the people for insurance companies and say all the opposition is against a 'public option' when it is really against the mandate that 300 million people buy government designed insurance product that will both drop standards of care for those on medicare and will micromanage compensation to providers to enforce government committee recomendations of cost effective practices. Public option is worse to the extent it cuts choice, but not a lot will be left to choice under mandates for qualified private plans under Obamacare.
And the idea that you can keep your own plan is nonsense unless you have a rare plan like a union plan or Congress's plan that doesn't have a term when it ends, is not altered, and is not dropped by your employer in the face of tax incentives to do exactly that. Old plans can take no new people, and new plans have to be 'qualified'.