Consider me mildly impressed. Remember when the HD7770 was launched at $160 and offered slower performance than a $120 GTX460? That was a joke. In fact, even today it's only an acceptable option because the GTX460 is no longer available and the HD6850 has gone up in price.
At $150, the GTX650Ti would offer a legitimate alternative to the GTX560, which sells for about the same price. No, it's not moving price/performance forward, but performance/watt is considerably better.
Keep in mind that I've been recommending the HD6870 to everyone shopping in the $100-$200 price bracket for the past year. I suspected that the current generation of GPUs would not offer anything more in terms of price/performance in 2012, and I have been proven correct. You could get the HD6870 for under $140 6 months ago - it's gone up in price now, so the newly-cheap HD7850 1GB may finally take over the price/performance lead, but the 650Ti is doing no worse than any of the other failed mid-level cards of this generation.