[iso1631]

If I wanted tickets to blink182 I'd DDG blink182, which obviously has blink182.com as the top result.

I'd then click "book tickets". That might be a link to ticketmaster, but it could be a link to seetickets or any other ticket system.

If blink182 used seetickets, and I wanted to go to their concert, even if I went to ticketmaster, once I found that I couldn't buy a ticket, I'd go elsewhere.

[jandrese]

If Blink182 used Seetickets they wouldn't be playing in any of those large venues and wouldn't be getting radio airtime plugging their tour.

[iso1631]

So the ticketmaster product is better for the customer (blink182), doesn't mean there's no competition.