This essay originally started on Quora. I was so dismayed by the other answers, recommending startups spend many hundreds if not thousands of dollars every month on over-hyped sales CRM. Sales are not made by software but by people. Yes you need good tools but there are some very affordable ones out there. Here's an overview of CRM software Foliovision have tried first hand.
If you are a startup, especially a bootstrapped one, you should care about the amount of money you spend. A lot of the contenders in this space want $50/month/user or more (Salesforce I'm looking in your greedy direction right now).is another one in that category ($59/month). While talking about greed, even Salesforce doesn't hold a candle to the credit card hammerers over at InfusionSoft (do not even think about it).*