Not sure what the terms are but if the hosts have to guarantee a payment to the league then it is likely that Ireland will be the only ones confident enough to get a big crowd to do that.
I'm surprised the Welsh haven't though, given how well the Scarlets are going. Hopefully if Edinburgh can be competitive it will give the SRU the confidence to bid for these. It is not healthy for it to be in Dublin continuously.
Again if we had a 30k seat stadium it would help for this sort of game, our option of 18-20k or 67k really limits the options.