Are potluck weddings tacky?

Hello all,

My girlfriend and I have been discussing what our wedding plans would look like if we were to get married, and we came upon an interesting question.

We are both of the mind that expensive/extravagant weddings are not for us. At the same time, we both want the day to feel special. All the usual stuff you would expect.

Anyhow, we came up with the idea of having our wedding be a potluck for food and drink. We have some talented cooks in the family, so it would be fun to see what people come up with. It would also help us save a bit not having to get a caterer.

The other factor that makes this option feel reasonable is that we wouldn't have a gift registry. We both make decent money and we both live together and have all the kitchen/bath stuff we could want. Would seem silly to ask people for stuff like that.

Long story short, if you were invited to a wedding like this, would you think it is weird/tacky?

Just want some outside perspectives.

Thank you in advance for any advice!

Edit: Thanks to everyone for the helpful comments. Hadn't considered the food safety/allergy angle.

A few folks suggested food trucks and we both really like that idea, so if you have any suggestions in a similar vein, please let us know! Appreciate the discussion (: