Also depends on how you quantify "Expensive".

If your bar tab with your two friends comes out to $100, what's your reaction -

1. Shit, that's expensive. Wasn't expecting that. Oh well.

2.  Shit, that's expensive! I really can't fuck up like this. I need to pay attention next time.

3. Shit, how did it get that high?? How am I going to pay for gas this month? Fuck, this is bad.

4. You didn't go to the bar because you can't afford to go to bars