⭐ Merited by Welsh (5)
The 8 inch by 8 inch by 1.5 inch tinys use under 30 watts daily if they have an intel i5 6500t cpu.
that is 1 kwatt a month. who cares about power costs at that level
30W is 21 kWh/month, or 263 kWh/year. That's €100 per year. Assuming I create a setup for 5 years, that's €500. If a Raspi could bring it down to 6W including disk, that saves €400.that is 1 kwatt a month. who cares about power costs at that level
Also, with laptops if you do have to change the fan out it is *usually* more of a project then a desktop.
I'm on my third fan 
The first one broke, the second fan had less blades than the original and didn't work as good. Most of the time it's 8-12 screws.Quote
On the flip side if the AC adapter dies on a laptop it's not a big deal vs. taking apart a PC to and getting a new power supply.
Don't get me started on adapters....... I've seen original adapters blow up the mainboard (twice). Most of the time the cable breaks internally, but that doesn't happen if you use it as a server.