With Obamacare people will pay more for health care.  American people are being forced to spend money on health insurance they may or may not want and those that don't will be taxed -- that will increase the cost of healthcare in the USA.
		
		
	 
No, on average, people will pay 
less. 
The system we have now depends on private insurance being very expensive, so that it can cover the non-insured patients in the system. There will be a lot of people who will "lose" under Obamacare, in the sense that their personal costs will go 
up. This will mostly be poor and lower middle class people, who do not currently have 
any insurance. But, on 
average, most people who have healthcare now will pay less. Rich people will pay a lot less, since they will be subsidizing the care of fewer patients. 
Obamacare accomplishes with healthcare expenses exactly what the GWB administration was trying to accomplish with taxes - shift the burden for costs proportionately more onto the poor and middle class. Obamacare was designed by the Heritage Foundation with this very goal in mind. It should be a tea party Republican's dream healthcare plan. Except, of course, for the fact that a black man got it passed.
	
		
	
	
		
		
			A solution would be to create an environment that cause costs to go down -- competition always works -- people should be allowed to buy insurance where they can get the best deal.
		
		
	 
You've just described Obamare perfectly. An "environment" that causes healthcare costs to go down by allowing people to buy whatever private insurance they consider the best deal.
I take it, then, that you are now a fan of Obamacare.
	
		
	
	
		
		
			Obamacare will be bigger than Walmart and not nearly as efficient.
		
		
	 
Of course it will be bigger than Walmart. Whether or not is as "efficient" remains to be seen (Walmart is 
not the model of efficiency you seem to imagine). But it will certainly be more efficient than the model of 
inefficiency which is our current healthcare system. That is, in fact, how Obamacare achieves its modest cost savings - through greater efficiency in the system.