You took one single line from his post and took it out of context. As Rvenger correctly stated, you are trying to stir the pot.
GTX 680 was hailed as a Tahiti killer right from release. Very few of the reviews or Nvidia fans waited for the "market to decide", they simply hyped GTX680 then and there. I asked if AMD did the same thing and release R9 290X $50 cheaper and ~10% faster than 780, should we use the same criteria and hail it as a great card?
No need to wait for the market to decide, it's a simple question than can be answered easily.
For the record my response would be, no we shouldn't. GTX 780 has been available with that level of price and performance since May. IMHO R9 290 should be ~$450, R9 290X should be released at ~$550, the same price the 7970 was released at.
Somehow many think it is OK for Nvidia to be late and deliver similar performance as an already available AMD card. In fact is more more than likely the Nvidia card will be hyped as amazing (See the truly ordinary GTX 660Ti for proof). Turn the tables and AMD are "too little too late".