Cheap Wedding Venue in Duluth

My friends got married on the beach at Glensheen on Nov. 12, 2011. It was obviously chilly, but pretty nice for a little ceremony with a couple of fire bowls.  And it's scenic without requiring a cold hike. They also have the downstairs patio area that can be used for indoors. Not sure of pricing, but they seem pretty flexible.

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How few people and how low of a budget?

A lot of people get married outside in the cold in Duluth, and I'm one of them. But clearly that's not what you want, so I'll move on.

If the number of people attending is truly "very limited" you could rent the most spacious cabin available along Lake Superior, hold your ceremony in the living room, and then kick out the guests at the end of day and begin your honeymoon right there.

The trick with most indoor venues is that if you want to decorate and/or keep the general public away, you're going to have to pay a premium for it. But you could easily walk into Karpeles Manuscript Library , Great Lakes Aquarium (with paid admission), or wherever and hold a somewhat spontaneous ceremony for free. And if you actually did get kicked out it would automatically become a great wedding experience.

If a venue offers their facility for rent (for a wedding and/or reception), just showing up and trying to have a quickie ceremony on the sly is technically theft. That would be an even better story for your grandkids.

Grandmas Sports Garden (seriously) has two cute event rooms upstairs. I had my wedding in the larger of the two rooms, and got it for free with purchase of catered food (they had a special going). I recall the room rental fee would have still been very reasonable. At least the larger room has lake and bay views (smaller may have just bay view?).
Photos here: small room is pictures 25 & 26, large room is 27.