I'd say the reason why is probably based on the fact that none of the promoters in Ireland were willing to book them at the rate DT expects, or they could've gotten better offers from promoters in other cities/countries.
Another possibility is that they just weren't able to fit it into their routing; it keeps costs down to travel from one city that's close by to another, as opposed to traveling halfway across the continent. So perhaps due to the availability of venues in the surrounding areas, it wasn't feasible to fit Ireland into the plans.
And the last thing is that they could have just decided that they didn't want to do any more shows on the current leg of the tour. DT limits the amount of time that they are away from their families, usually to 4 or 5 weeks. The fact that the current European leg of the tour is about 6.5 weeks is beyond that self-imposed limitation, so they are trying to reach as many people as possible, but still being reasonable about how much time they are away from their families.
Keep in mind that the same thing holds true in North America. There are many places in Canada and especially the US that rarely if ever see DT shows, so Ireland is not alone.
Topic: Why won't DT come to Ireland? (Read 2140 times)