I recently had to deal with this when shopping for a shipping system to replace our ugly old Filemaker plugin. "Call us for a quote", having to wait through two weeks of sales cycle to get an API doc that should've just been on the web site (the worse was the company that had a full wiki for their API, but only available to customers), features written in marketing-speak instead of displaying the real capability of the product, etc. These were good products being horribly sold.