I don't particularly care about the price. I'm using it for things like sending myself a small number of simple notifications. I have a script that monitors a web app I maintain for work, and if it isn't responding, it sends me an SMS.

When the site is down, people can't do any work. If they can't do any work, they lose clients. If they lose clients, I don't have a job anymore.

If the point of using SMS were to actually build an SMS service, I'd spend more time worrying about it and choose one of the more fully-featured SMS providers. And if it were to be a commercial thing, sure, I'd talk to their business development people. But everything starts at the micro level: what could be a business idea in six months starts as a crappy little hack now.

Here's a point of comparison. Esendex are usually considered one of the better SMS providers. How much do they cost? Oh, let's have a look at their pricing page. Doesn't tell me. Lots of blather. And a nice phone number I can ring and talk to a salesman or I can sign up for a no-commitment free trial. I don't want to talk to a salesman, I want to send a flipping text to myself in this crappy little Python script I'm writing.