In many cases buying from Amazon and other online retailers invoves significant postage & packing charges but can still yield savings in the long run especially given Ireland's geographic location. GBP£11 P&P for several books is not necessarily excessive depending on the type of postage (e.g. expedited, signed for, insured, registered etc.) and the weight of the books. The value/cost of the books is irrelevant to the P&P charges. You takes your choice and you pays your money if you decide it's worth it...