A1. By @random-adam :
Congratulations on your upcoming wedding! If you wouldn't buy a burgundy tuxedo (a choice with which we'd agree), why would you get married in one?
A2. By @archibaldleach :
Ultimately what you wear is up to you but, in my opinion, the burgundy tuxedo is a terrible idea. I've seen on rare occasion a gent look distinguished in a tasteful colored velvet smoking jacket, but it's not the easiest thing in the world to pull off and may well look better on the model than it will on you. If you want to wear a colored jacket, I would stick to black formal trousers, black cummerbund and black bow tie. I wouldn't wear a waistcoat with a more casual jacket. Groomsmen should wear black ties no matter what. There's no reason for them to match their ties to your jacket.
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