Basement Tiling

10 years ago, I tiled my 18x12 bedroom floor for RM1k only. Recently my grandaunt tiled her outdoor floor which is about 4 times the size of my bedroom at RM15k. The price of the tiles really shot up since 10 years ago! I wonder how much would the basement tiles cost then. I read that it is not easy to tile the basement floor. Moist control must be taken into consideration and ceramic tile would be a better option.