Used comparatively, is used to show: 1.) how much money is being wasted on an expensive product when it could be wisely spent on delicious Taco Bell, and 2.) shows the lack of worth of whatever you're spending the money on. Also applies to money squandered on fines, tickets, etc.
...This baby's top speed is 205 MPH and can be yours for only $300,000. "Damn, that's a lot of Taco Bell."
I got a posession charge, 3 years, 2 probation, and a $50,000 fine to the city. "Holy shit, crack is wack. That's a lot of Taco Bell."