Card has been running strong for 3 years now and never had any issues.
Build quality is great and very long lasting.
Meant to be overclocked to squeeze out more performance.
Runs todays games at medium settings.
And will be for awhile at that price -- figure you can get a brand new 2 generation newer card like the 7770 which will run much faster and uses less power for around $85 (was on sale the other day for $70 but that sale is over) IF you really want to sell it you need to look around and see what they are actually selling for ( Selling for not LISTED FOR SALE AT) and adjust your price accordingly.
Not sure where you live but locally I can find the 5770\6770s for $30 - $50, anything more than that and you are better off buying a new generation card like the 7750 or 7770 both of which out perform the 5770\6770 use less power and can be had for around the $70 - $100 mark that you are asking for this card.