According to an electronics weekly article, demand for Nest and Dropcam IoT products fell sharply at the beginning of the year:
Argus reports that by May 2015, interest in connected home products was 15% lower than where it was the same time last year, despite there being significantly more connected home products on the market, and correspondingly more information about the technology available. Early adopter tech enthusiasts, he says, drove a lot of the excitement (thanks in part to a host of successful Kickstarter campaigns), but now mainstream consumers are finding that the reality of configuring and maintaining a smart home system is more work than they bargained for.