The kinds of leads that you are likely to get for free are ones that have been gathered in a scatterspray way – they could be poorly targeted, or in some cases even people who have not opted in at all. If you contact leads like this, then you will be putting your brand at risk, because you could end up in trouble with your web hosting provider, or the law, for unsolicited marketing. Alternatively, you could end up contacting people who might otherwise have converted, but who come to view your brand as a spammer because of the way the initial contact was made.
The reason I started Apache Leads way back in 2003 was that I was a Diamond level distributor for a San Diego based MLM company and had quite a large business. None of my associates had any access to leads, so that's how we got started. The demand for leads grew so fast that I had to focus on getting quality, affordable leads in ever increasing numbers.