Telling a developer to use something sounds like a bad strategy, we hate being told what to use. My cofounder and I are developers, and we've talked to a handful of other developers, and we've found that SaaS is appropriate for a lot of things. Others you definitely want to build yourself. But a lot of it depends on what stage your company is currently at. There's a reason all the big companies like SaaS, it's less resources they have to devote to something that is not core to their business.

Looking at your profile, it seems like you're speaking from experience. Have you found that selling to marketing and sales folks was more effective for your own business?