Yes it would but I can't afford to do that at the moment. Best cup of tea I've had at footie was at Bloomfield Road from the little van at the end of the scaffolding seating we had. About 90p in a polystyrene cup, and proper milk! I'm not keen on the corporate/pre-packaged stuff.
Too be honest, I've never had a problem with the stewards, they always smile and say hello.