It's a barrier. From personal experience new technology adoption in a company starts with an internal evangelist. If you work in a company and need to go through a procurement process to buy something before you even get to try it, you are less likely to have a play and get hooked. In a space that is awash with at least free to try alternatives it makes it that bit harder to engage with 'that guy'. The trick is making money once the whole team is using it.
I don't think that companies that have a procurement process is that same company that will buy a $30 CMS.
We routinely pay $20-100 for software we may never end up using. It's a small enough amount that if it pays of the saving on internal development time easily make up of the next ten small investments that didn't work out.
It's $30, that's cheap enough that you can buy it, test it and then decide that it wasn't what you needed anyway.