healtchcare.gov was no worse then any other website as complex as it.. oh wait, there has never been a launch of anything the complex on the web.
Clearly you have no idea how complex the world of airplane tickets and hotel bookings can be. Just like in health care there are a few big networks (SABRE, Apollo) and a few spinoffs (Galileo, Shares), none of which is compatible with the others, plus there are plenty of small providers who do things in their own way. Yet companies like Kayak or Orbitz managed to build decent platforms dealing with this chaotic industry without pouring billions of dollars in a half-baked implementation.
There are systems like Morningstar who manage to keep track of data provided by various incompatible and antiquated financial services systems. There are online home/life insurance quotes providers. There is Equifax that does a decent job of merging nightmarish data sources.
I could go on and keep talking about websites that are more complex than a simple healthcare marketplace, but one thing I know is that with Obamaniacs nothing even remotely linked to His Administration will ever be considered less than perfect, be it a botched healthcare program or spying on American citizens and getting caught by a bunch of army transvestites and Autralian rapists.