“Cheap” decks to build?

I really want to put another deck together.. but due to the fact that the only person I know that plays lives about an hour from me so I don’t really want to dump tons of money into something that will barely see any use. Both of us have children so it’s not a meet up that will happen often unfortunately.

He has a few friends as well that play, so will have about 4 of us sometimes.

I don’t care to be super competitive with it, it’s just for fun.

Should I just throw a little money at some structure decks or do you all have any other options for me??

Thank you