Rather than buying a raspberry pi, is it a good idea to use an old smartphone instead? I have an old Samsung Galaxy S3 collecting dust in my drawer. I would love to give it a new life by turning it into my personal cloud using nextcloud. A few benefits I could think off that I will get out of this is obviously saving money by not having to buy raspberry pi and also being a smartphone itself, it already has a screen. Slap some 128gb micro sd card in it then you get yourself a portable cloud server.
So any thoughts?