Yeah, Uncle Bob is always really interested in your gear.
I've only had one obnoxious Uncle Bob. I was using a 40d up until a few weeks ago, and Uncle Bob had a 5dii and a 1d3 as his backup. (Yes, he was a guest.) He came up to me at the reception and asked if I thought a full frame camera was "better" for weddings. All I said was "well, the 5dii is a very nice camera, no doubt about it. But necessary? Not at all."
But the bride and groom? Unless they are also photographers then I really don't think they care; as long as you deliver great photos.



