I didn't see the OP mention that he was going to Crossfire or Eyefinity.
It is still relevant. AMD has set a precedent of refusing to admit to software issues, and when forced to acknowledge problems through the persistence of various tech websites, they take an excessive amount of time in issuing a fix. Like I said, relevant. Does the 290 have mysterious issues yet to be uncovered? I don't know. But we do know that the Tahiti has yet to have crossfire + eyefinity stutter fixed, although AMD has promised a fix in January 2014. They originally promised this fall. This is after websites uncovered the issue in late 2012. When was Tahiti released again? Q4 2011 right? So a fix in Q1 2014. Is that reasonable? More than 2 years to fix their software? Also, there is no scheduled DX9 crossfire fix scheduled whatsoever. So DX9 games, I guess you're accepting microstutter as par for the course.
This is relevant because generally speaking, when nvidia has a software issue they will fix it post haste. My rough math indicates that it is taking AMD several years to fix some of these issues with Tahiti though, I mean, I don't feel entirely confident in a company that treats their customers like that. It is not reasonable to take more than a year in correcting a software issue, but AMD has done just that several times.
With that being the case, I can see why some folks would prefer an nvidia solution despite a slightly higher cost. Like I said, nvidia may have issues now and then but I certainly don't remember nvidia taking 2 years to issue a fix for such issues. They fix it post haste and you get better software (in terms of features) from the get-go. Heck, right now there ISNT a higher cost for nvidia. Thanks to mining, PC gamers can generally get the nvidia solution at a lesser cost compared to the AMD solution. So there really isn't any tax whatsoever in the current etail market.
I've said many times...
good hardware is nothing without a good software ecosystem to back it up. Taking more than a year to issue a fix for your customers? I wouldn't call that good software support. Now, AMD has improved a lot as compared to 2012 in terms of software, but they are not on nvidia's level in terms of software IMO. Not yet. Nvidia simply outclasses AMD in this respect, and I do think people are willing to pay more because of that fact.