I think it depends on individual, you should know him well from your usual shopping trips. My husband did not follow me to search for THE dress. I wanted to keep it as a surprise, so he only got to see it on the actual day.
Sometimes might be a blessing. Best is when you can decide everything while he pays hahahaha. Mine likes to comment so even my wedding dress he will comment say nice or not. Sometimes get a lil annoying actually. Like, "lao niang like can?!?!" Hahaha!
But I guess some guys just dont know how to explain their feelings.