I am currently at 62 - and these are only devices that are used regularly and that get IP addresses on my LAN via wired connections or Wifi.
Networking
Routers/WAPs 5
Home Automation
Control4 Controllers 2
Blinds 1
Irrigation 1
IP Cameras 9
Fitbit Scale 1
A/V Equipment
Game Consoles 3
TVs 1
AVRs 2
SageTV Extenders 9
Harmony SmartHubs 3
Computer Stuff
PCs 7
Laptops 4
Raspberry Pis 3
Mobile
Tablets 7
Phones 3
Game device 1
Total 62
Networking
Routers/WAPs 5
Home Automation
Control4 Controllers 2
Blinds 1
Irrigation 1
IP Cameras 9
Fitbit Scale 1
A/V Equipment
Game Consoles 3
TVs 1
AVRs 2
SageTV Extenders 9
Harmony SmartHubs 3
Computer Stuff
PCs 7
Laptops 4
Raspberry Pis 3
Mobile
Tablets 7
Phones 3
Game device 1
Total 62