The level of HGTV looking home everyone wants when buying a single family house means cosmetics now play into what it will sell for. A re-tiled bathroom will sell faster and for more. At least from my experience in the U.S.
Posted Using LeoFinance Beta
I'm not saying broken tiles are not a disadvantage. Just saying that they are not a moisture issue in themselves. Or if they are, we're talking about a building code that is very lax and that moisture damage is guaranteed regardless of whether the tiles have cracks in them or not.
Also, if you plan to change individual tiles that have cracks in them time without renovating the entire bathroom, that could be a problem if there is proper waterproofing under the tiles. That's because taking the tiles off the underlying cement layer above the waterproofing could damage the waterproofing layer. Always consult an expert before you do anything.