Ive never had so many bad ones that I blamed Creative for making bad cards.
Creative doesn't make bad cards. They make bad drivers and have bad support for decent cards. There are certain hardware combinations over the years that have been roadblocks with Creative products, and certain software that ran horribly with it.
Creative's ugliness rears its ugly head when you DO have a problem, find out it is shared by thousands, and Creative is nowhere to be found (compare to ATI or Nvidia who address issues every few weeks.)
Their drivers contain so much junk that it takes more time trying to figure out what NOT to install than the whole rest of the process. They most certainly do drop support for old cards way, way too soon in an artificial attempt to force people to upgrade to newer cards before their old ones are even remotely obsolete. They want an upgrade market like exists for graphics cards - every two years - when they make a product that only really needs upgraded every six or eight. They compensate by artificially forcing upgrades on people.
(BTW, I've lost count of how many computers I've built and configured over the years with Creative and non-Creative cards, so I'm speaking from experience myself.)