Right now we're seeing a seriously dysfunctional market being tightly manipulated and controlled by government and banks to suit their own interests.
Plenty of advantages to ownership - irrespective of economics - like being able to fix issues properly, ability to do up a gaff nicely, long term...
No, it's just a bar. There is an offy attached to Kavanagh's on Dorset St which is also run by the Mulligans crowd.
I think your best bet would be Redmonds in Ranelagh, afaik the biggest selection of craft beer in the city.