I would be in favour of redevoloping TP also. Fantastic athmosphere, plenty of facilities around and a few minutes from town. Last season was great with the 5pm kick offs that you could stroll into town afterwards for a few. Even if they increased it to 20,000 it would make a big difference. A stadium of 30,000 would look empty for any other game than a HC game.
Hairy Homer is right, the stadiums close to city centre have better craic all round.
As for Hogan Park, I would have to disagree. I used go up there when Limerick City played there and it is one of the reasons senior football in Limerick has died. Its in the wrong part of town with absolutely no facilities around. Every weekend when I went up there to see Limerick there were a number of cars broken into. At least at TP people can leave their cars in the surrounding areas and feel quite sure that they wont come back to a broken window.