Might run out of stretch goals
Ten bucks gets you the Dota 2 Compendium, which guy who actually knows about Dota 2 Patrick Hancock says is better than last year's. A portion of the purchase also goes towards raising The International tournament prize pool.
Last year, the prize pool was $2,874,381. Right now it's $8,304,958. The stretch goals only go up to $10 million. Crazy!