Boat Blinds are great!!!!
I have a custom made pop up blind that I use when it gets really cold. I park my boat as close to the guys that set up next to me right before LST as I can and then walk over to my hunting spot. I can walk over to my boat/blind get warm with the propane heater any time I want. For some reason the guys next to me never get any action.
Seriouly, I spent 2k on a blind that I never use, but it looks awesome!
A couple of years ago I went out late season with a home-town buddy that I hunt with about once a year (every time afterwards I say no way will I do that again - then I realize he's not a bad guy, just not the best hunting buddy, and end up doing it again). I leave the blind on the boat during season just in case I have to use it. Well, while he was putting on his waders he realized he had a BIG leak and the water was friggin' COLD.
At first we hunted together from the boat but it was late season without a lot of cover. After watching a few groups get right on the edge of range and flare off the boat I made the decision that it wasn't my dumb butt that showed up with leaky waders so why should I pay the price.
I got out, went down wind of the dekes in some cover, and waited for them to get as close to the boat as they would before they flared or he shot. I got to clean up a lot of his whiffs that day.
I bet he won't do that again...