Its probably in the pipeline for later but different for the international, really good feature if that is the case tho, will allow events to be self sustaining so much easier. Good times ahead for Dota2 imo
The international is free to watch, i know alot of other tournaments have a pay-to-watch ticket if you wanna watch via the ingame client, or you anw atch for free on their streams, some tournaments give you cool things if you buy a ticket, IE - The Defense season 2 ticket holders got a special edition "Defense" War dog Courier.
As well as what cyanide said- theres flags and sections on the map (like the each teams fountain) That has space where teams casn put their logo/sponsor logos etc, i know EG is showing their logo and the Monster logo at the mid-river, while their base has the raidcall logo. Its pretty cool, some other teams just show all their logos on all positions (Which is difficult to make out which is which in some locations, they're too small)
Even the smallest donations help keep sc2sea running! All donations go towards helping our site run including our monthly server hosting fees and sc2sea sponsored community tournaments we host. Find out more here.