Anyone :3?

IMO you must really enjoy gaming to be loading your card for 10 hrs. per day !  
 
Kidding aside 1st of all you probably made the right decision with your existing case to purchase the blower design.
 
Although when you glance at the below reviewed test temps that were performed on an open air bench setup in a 70F degree room versus a case enclosure with excellent air flow the temps are running essentially the same as yours in the case.
 
Blower design :  http://www.guru3d.com/articles_pages/geforce_gtx_770_review,6.html
 
The below i highly doubt would run these temps in your case under load so i feel the blower design was your best choice:
 
ACX design  : http://www.guru3d.com/articles_pages/evga_geforce_gtx_770_sc_review,6.html
 
I used to be worried about my GPU temps and used various modded CPU heatsinks on my GPU and even ran with the left side of my case off and had a 18" fan blowing on the card. Back then we didn`t have fan profiles you could set and i never once had a GPU fan fail running wide open even after 3 years on the same vid card before upgrading. 
 
If your getting 72-74 with your fan profile under load versus 80C i would continue with that strategy and not worry about the fan longevity. The GPU & heat on the memory chips are far more important and for sure if you go Sli in the future. 
 
Regards & have Fun,