I would love to go
with you to that one, to find out what theirs is like,
@Jace 

It's worth a try. We might find a couple of unusual houseplants that they want to sell to us, very cheaply!
Doesn't sound too likely though, at that one, does it?
Many years ago, I used to go to some local ones, that were not always free, but the cost was low, and the price
included both the demonstrations, explanations,
and all of the hands-on materials, to do some project, that participants then took home.
It was definitely educational, and fun and social, too.
The presenters were friendly and amusing, and extremely knowledgeable, so it was a good deal, and they (the classes or workshops) were always full of pre-registers.
Yes, they had plenty of stuff you could buy while there, and they gave a one-day discount to participants to use, for anything at all, if they wanted to, but they didn't push sales at all.
And they answered all questions about related topics, that attendees asked.
They understood that it was good to be friendly and educational, and to get people to go to their place. (without pushing products)
Good for business, for them without being pushy at all.
And fun for everyone. I am glad I went. Always was fun and interesting, whether a free one, or a low cost one, that as I said, would include that you took home the tray of seeds you started there, or the cut flowers you made an arrangement, etc.