The other side of the coin is that commercial fonts from the major foundries and design houses represent not just a high standard of quality but also a standard for specifying and identification. And while that may cost you some investment it will also put a much greater amount back in your pocket.
The job you posted, for example, took me about a minute to identify the font. It happens to be a font I purchased years ago so I would have no cost in that regard to set the type for this job. If I didn't have the font, it would likely cost me $24 to acquire it and I can cover that with this job or even add the cost into a setup fee. The alternative would be to spend some time searching for something that was kind of like it and not provide the client with what he wanted in the example he submitted.
A font is a design specification just as a PMS color is. Positioning yourself to efficiently be able to meet specifications instantly moves you into a higher tier in your craft and pays you back with higher rates for your work and more clients seeking you out because you do a higher quality job.
Free fonts may sound great but they may cost you more than they save you.