Some people falsely believe that an increasing hashrate means a better security model. This is incorrect! In the concrete case of DASH one or two companies now could have complete control over DASH mining by mass-producing and deploying ASIC miners. The hashrate would dramatically increase pushing all the small GPU miners out of the competition. But this is not a better security model, but far worse and centralized.

The end-result can be seen when looking at Bitcoin. A few major hardware manufacturers are in control of Bitcoin mining. The whole mining world is very centralized leading to all sorts of problems.

One of DASH's major selling points was that it is ASIC resistant. We should keep it this way, to avoid centralization!