Any affordable beginner dance classes?

My husband got us some lessons at Arthur Murray dance studio. We are coming to the end of our lessons and they will be talking to us about their other packages. However, we are afraid they will ne too expensive and I was really enjoying this. Currently it is $668 for 4 private lessons. I've been trying to go to their group classes to make this worth it and have quite enjoyed learning different dances. Im sad knowing we may not do this anymore and I like being active for once in my life.

Does anyone have suggestions on other classes that may be a bit more affordable? We are learning salsa, tango, waltz, cumbia, merengue and a few others. Thank you.

ETA: the pricing is for private lessons so we aren't sure if they have a group class package. I'll ask to see if that's a better option. Their website doesn't say either so no transparency when it comes to their prices.