Remember the horrendous 20% Value Added Tax...
I was in Andorra in the late 70's, and the Spanish Border Police wanted me to prove my AM/FM/Cassette Player/Recorder was in my !972 Dodge Charger R/T when I left Spain and entered Andorra...After three and a half hours, they finally relented, and let us back in the country...Andorra is a gorgeous place, just a little larger, than your living room...
If you're exporting tools from the EU, I believe you can apply for a refund of your VAT payments...I'm not sure --- but, I believe you can...
The only thing I know about Barcelona, was they had an albino gorilla in the zoo, and I'd told my kids that we were going to see my "Long lost brother", and that he was in jail...
Oh, and they have a pretty good soccer team...Barcelona, not Andorra...