I can't say I've seen it with every vendor. Or even internal dev team I've been an internal customer of - but I've seen it around a lot.
You might be lucky in that you've worked at companies where you are a big enough customer they bend over backwards for you. For example: If you work for Wal-Mart, you probably get this less often. They are usually the biggest fish in whatever pond they are swimming in.
You might be lucky in that you've worked at companies where you are a big enough customer they bend over backwards for you. For example: If you work for Wal-Mart, you probably get this less often. They are usually the biggest fish in whatever pond they are swimming in.