/lit/ - Literature

Should I be sending query letters to both big and small agents?
I can't see why not try the big agents, but is there a thing such as "too small"?

Recommendations of books with a real economy where the mc struggles with money? Or handles it often?
My story has a large monetary aspect, and I'll need to incoporate a full economical system and price tag everything, realistically, WITHOUT MAKING IT BORING.
The Name of the Wind, for example, is really good with this (at least). I could clearly feel Kvothe's struggle for money, how essential it was for everything, and how happy I got whenever he managed to gain more (not to mention I was able to keep track of how much he had at all times). And it was so interesting!