The industry hasn't waited. It was already doing this to the tune of $9 million worth of MEMS in 2011, according to IHS-iSuppli.
So nothing is stopping the industry, and the market will grow from $9 million in 2011 to $155 million in 2015, according to IHS-iSuppli. Other opinions are available.
That was my conclusion. MEMS accelerometers are more mature product with more applications outside mobile consumer and therefore a lower ASP. MEMS gyroscopes are more recent innovation with lower volume and fewer suppliers and so with higher unit prices.