I noticed today that the South Point lunch buffet is now $20.95 (if you show your card) up from $19.95. All meals have increased prices.

 

New Prices: 

https://southpointcasino.com/wp-content/uploads/sites/1/2015/01/Garden-Buffet-Prices-10-24.pdf

 

Old prices for now are on the LVA website: https://www.lasvegasadvisor.com/restaurants/garden-buffet/

 

That 2nd link doesn't click to the right LVA page but copy and paste works.