Large, badly managed companies have "budgets" per department that have to be spent or it looks like the department head wasn't working well enough. If they don't spend the budget, someone else gets it for the next cycle. It also gives the (utterly idiotic) impression that the department head wasn't doing a good job because they could have used that money to "grow the business" in some nebulous way. So when you're close to the end of the budget cycle and have 100k left, and a spiffy salesman comes along asking for 35k for his "concept" it looks like a great solution for everyone.

Who knows, maybe it will work out really well and now you've shown incredible "vision". If it doesn't work, you're well within budget and have shown "a great appetite for risk" or something like that.