Don't overlook this important factor in your buying decision. Look for innovative products that have patented technologies. Those that don't have patented technology could be either offering a cheap substitute for the real thing, or could be in the middle of a lawsuit. Steer clear of any that haven't. Good products make good news.
Lousy products get little coverage.
The trade rags want to tell their readers about proven, successful technologies, not lemons. Scan the ISVs' websites for lots of good news stories. Sites that lack these are probably hiding something, or the press doesn't see the products as mature enough to deserve valuable ink. Look for an ISV with local offices around the world. Look for solid partnerships with reputable organizations.