Invited again

Je
I have been invited to a Jamberry party but have never been to one before. What do they do at Jamberry parties if you been to one. 
I understand that it's mostly about nail polish which I don't even wear ever. 
So could someone recommend something to buy not having to do with nail polish. 
I'm trying to decide if I will even go to the party. It's about a 30 minute drive to get there. And this is the third direct sales party that the same family has invited me to in a year so I think they just want my money! Lol! 
I would appreciate any comments that would help me make a decision. 😆