I still say it's a luxury just like Spurs and Duncan
Davis is 240lbs
Here are the weights of starting centers around the league -
Cousins - 270lbs
Drummond - 280-290lbs
Vuccimane - 260lbs
Lopez twins - 275lbs and 255lbs
Asik - 255lbs
Len - 255lbs
M. Gasol - 265lbs (down from 280lbs)
Horford - 250lbs
Valanciunas - 255lbs
Hibbert - 290lbs
Pekovic - 290lbs
Jefferson - 290lbs
Bogut - 260lbs
Adams - 255lbs
Mozgov - 250lbs
Jordan - 265lbs
Len - 255lbs
The outliers Chandler, Gortat, Sanders and Bosh. All of these guys are taller than Davis and Bosh is really a PF playing C to take advantage of mismatches.
Nobody in their right mind wants Davis banging with these 260-290lbs muthafukkas for a full 82 which is why he's a PF and why the Pelicans brought in Asik. This is the same reason Aldridge hates playing center and wanted them to get a center, hence drafting Leonard and signing Lopez, because he's a PF.
Davis has the game of a PF, plays PF, his team views him as a PF so I don't get why you think he's a center.