fulmin,
I presume you are new? You still have your TR and LT cost to claim as expenses. How "doped" is your salary? Wait until you pay full Irish PAYE, possibly USC and PRSI. Are you Spanish? Do you expect to enjoy any of the benefits from paying Spanish SI, i.e. accumulate pension? Keep in mind you are only paid 11 out of 12 months. Do you expect any rise to match inflation? Not exactly industry leading.