Most places that have "fitness" classes or "cardio boxing/kickboxing" or other gym amenities that aren't typically included in straight BJJ/MT/MMA gyms will negotiate price like that. They're all about getting that contract signed to add members for any facet of the gym. Always negotiate with these guys. Hmm and Haw with them. Tell them you need to think about it. If they say this is a "One time" or "First time" offer... it's not. They will take less.
Straight fighting gyms, however, tend not to play games for profit. They're in the business of building fighters more so than making profits.