I agree that Cubing is an expensive hobby. If we include more technology at competitions it will get more expensive. Also, WCA works as a non-profit, so the funds in the pool is always going to be less.Cubing is already a realtively expensive hobby from cubes such as the Gan line (thankfully cubes like the RS3 exist), travelling to and from comps which will be a lot rarer in poorer areas and having hardware to run timing software, many things we take for granted. Having cubes suddenly become a lot more expensive and require an app that can only be used on a smartphone makes this even more of a problem. As previously mentioned, there are also practical issues when ignoring cost, but combined, they give a very good case for this being a bad idea. Smart cubes can be useful, but not as a timing system for the WCA.