I'll buy 3D once it seems like the glitches are worked out.
If 3D is an important feature then I agree it is prudent to wait for the bugs to be fixed. However, the other driving factor is 3D content. The technology could be fine but if there are only a handful of good 3D movies it makes the purchase of the necessary gear less desirable. By "good" I'm referring to plot, character development, story line etc
and the appropriate use of 3D. As an example of inappropriate use of technology I point to certain SACD or DVD-A discs. I've got examples that really use the surround speakers yielding an unnatural distracting experience. So, IMO 3D technology
and 3D content must mature before we will see any significant level of adoption.