Originally Posted by
graraps
Exactly. In MAD, as has been noted already, it will be duty paid and likely a ripoff.
On the basis of the above, you're better off buying it in Lisbon.
The thing to note is that the local taxes in MAD are a LOT less than in the rest of the EU, so even if you have to buy duty paid, it is often a lot less than other EU countries duty paid.