Either, as long as the races aren't short ones. I voted gambling simply because most tournament races are too short.
The advantage to watching tournaments is that you get to see a larger variety of players. If tournament races were to 13 games MINIMUM for ALL rounds, then I'd prefer to watch the tournaments simply because I get more variety.
I haven't purchased a TAR stream yet, but this format is the very best way to determine which player is the better one in a particular match.
Maniac (could have voted either way)