I have read some "horror stories" about people buying tickets TO Italy FROM other countries, and then losing all money because they would have to retrieve the ticket at a Trenitalia ticket machine (which obviously does not exist outside Italy).
I want to buy a Luzern - Milan ticket. SBB shows many train combinations. Trenitalia shows just one of those trains, without a transfer, but sells it much, much cheaper than SBB. It is the same train (Eurocity 153) for sure. I simulated a purchase all the way before entering payment details; no such mention of need to retrieve a ticket at a ticket machine was shown.
Am I doing something wrong? Are delivery options shown only AFTER payment? Is it really a "gotcha" feature?