1 of my computers had GTS 450 1GB card which got some technical problem last week.
right now it's in service center. Now the service center guyz says that they give replacements of cards and the GTS 450 is not available right now. So I got angry and fought with them on phone and then they offered me 2 deals.
Offer 1: GTX 460 1GB in replacement of GTS 450 without any additional charges
Offer 2: GTX 550 ti in replacement of GTS 450 with additional charge of 30$
Okay I am also thinking about GTX460. Just Contacted the head office of the company and they said that they have couriered GTX460 and GTX550ti both to the branch in my city. I can get whichever I want on monday.