Motherboards for AMD Ryzen processors Socket AM4 are still very few on sale, although it is not necessary to talk about the shortage of the processors themselves. Colleagues from the site of Legit Reviews tried to understand the reasons for the deficit of motherboards.
Note that an anonymous comment from one of the motherboard manufacturers does not pretend to objectively describe the situation, but it eloquently demonstrates the presence of some problems at the stage of preparation of the announcement of Ryzen processors. First of all, AMD first planned to introduce processors at the end of the second quarter, but somewhere in December decided to postpone the announcement at the beginning of March. The production capacity has already been loaded with motherboards for Intel Kaby Lake processors, and this partly explains the shortage of motherboards with socket AM4, which simply could not be released in sufficient quantities to the announcement of the Ryzen 7 processors.
Secondly, AMD reported the size of the first batch of Ryzen 7 processors to motherboard manufacturers only two weeks before the announcement, and they simply could not "synchronize" their production plans with the intentions of the processor developer. Finally, motherboard manufacturers blame AMD for not introducing new processors too long ago, and thus forgot how to prepare for such events competently. Interaction with the board manufacturers at the stage of product development and testing was not established in the best way, and this also affected the scale of availability and availability of motherboards.