According to Ticketmaster Joaquin Sabina tickets for a November concert in a huge arena has such a high demand that I have to wait in line online. Nonsense! The seats I would want cost $155 plus fees. I bet in November I can get similar seats for less than $100 total... Remind me in November if I don't give you an update.
And, yeah, don't close the app or let the screen dimm... It's not like you are using a mobile device, right? What a cruddy experience and a show of not caring for your customers!