@NolanHerring It's in the doc Phil linked further up under number of devices per network
Number of Devices per Network
The number of Meraki devices (MX, MS, MR, MV, etc., not user devices) per network is a much more variable number that does not have a general recommendation. It will vary from case to case.
Note that there is a limit of 1000 devices per network. Networks exceeding this number should be split. However, it is generally uncommon for networks to approach this number unless they have a very large number of cameras or wireless access points. If this is the case, it is recommended to split the networks based on physical areas or use cases.