Must say I'm baffled by those who grow this stuff and more so by those who would ever consider eating it.. 
Well, theoretically, if one could grow meat directly you could have essentially perfect consistent "meat" without large ranches, large water use, feedlots, animal transportation and slaughter houses. You would have no animal waste to take care of. These meat factories could be near where it is consumed. No issues with humane treatment of the animals. The cost savings from all that could be dramatic. The meat could be marbled consistently with no gristle or bone. You could eat your meat as rare as you like with no chance of E. coli.
But there's still that elephant in the room...