Just checked that link. The written info isn't wildly out of the way, but forget about the submitted prices. Total bullshit. Typical price here is 3g for e50 which I think is about $55 or more. If you ask for an ⅛, you get 3g or more likely 2.8g. Ask for a 'fifty' and hope for the best!
Welcome to rip off Ireland, I mean, a 10th if an oz just doesn't even make sense to me...
Things may be better in Dublin or even Cork, Waterford or Tipperary. Out here in the West it's Galway or Westport. If I had to go out and score without a connect, I'd probably struggle to be honest. And I've lived here 4 years...