I agree, i would really look into better ways of spending money, and it seems all you will be bidding for is the lowest price.
Define "bigger account." I personally am no longer into chasing the $100-200K accounts any longer. They are great, but man it hurts to lose them. I would rather have 5 $20-40K accounts and diversify. One of our largest account was a lumber company...take a guess what happened to them in 2009. Another largest account was an offset press manufacturer...they are barely around. If one fell into my lap I would take it though, I am working on one of our existing accounts that could easily do that.
My point is don't chase those type accounts. We've printed for some huge companies. Coke, Home Depot, Atlanta Olympics(we lost a chit-ton on that one), Texaco, BP, and so on. Those companies know they can bully you. We billed a lot, but made less money and worked harder.