If you can, try to get some from someone going on a cruise (assuming you're not), rather than the UK or
Spain. I say that because they are substantially less expensive in the islands. Something having to do with import taxes, and in the case of the UK, VAT (Value Added Tax) tax, which is running about 27% of purchase price right now. As far as bringing them back, if it's obvious that it's for personal use, probably they would just be confiscated. There is a way that you can bring them back without ANYONE being able to ascertain if they are true ISOMs, but I'll leave that for you to figure out. Enjoy.....