Also a matter of opinion but app developers IMO shouldn't use their apps to market. I've already got an email app and a Feed reader. If I want to keep up with you I'll subscribe to your mailing list or follow your feed.
I disable auto-update because I get annoyed when apps tell me about new versions (and I have privacy concerns.) I wont consider using an app that doesn't let me disable auto update. I already have a strategy to keep my software up-to-date that works on my schedule.
I recognize I'm sensitive to these things but that doesn't mean they aren't justified or don't make sense. They just don't make sense * to you *.