Only somewhat amusing, because
1) It's ambiguous whether this is trying to sell me a ticket, but I bought a Rigoletto ticket last year
2) most people don't understand how an email such as the above even gets sent
3) some percentage of SFO customers will find it upsetting to receive email such as this
Either I was logged in to the SFO web site when I last looked around at who was singing what or the site deduced my identity from a tracking cookie. That information went to the marketing software that sent me the email above, but there is no point in this process where the ticketing database is checked to see whether the target (that's me) already has a ticket. (I think, because it's ambiguous.)
I'll probably be sending this email along to the right person at SFO to suggest adding such a check, but in the meantime, I've got an addition to the publicity basics page: Don't Make Your Customers Think You Are Stalking Them.