Hmm... As far as power cables go, I think I only ever bought one proper PSU for a Pi, the rest were all powered from various bits of discarded PSU here and the

Hmm... As far as power cables go, I think I only ever bought one proper PSU for a Pi, the rest were all powered from various bits of discarded PSU here and there, and in one case via a 5-way usb power thing. (Heck - I think only 2 of the last 5 phones I've had came with a power supply). SSD - definitely nice to have, but I've not used one on a pi yet. For display cables - most of my pi's tend to be headless, and I pre-configure the network bits when I image the sd card, so I don't often use the display at all. Cooling case has become more necessary with the 5, although a heatsink alone can cope if airflow is good enough (e.g. if there's no case, of if the top is off). But yes, if you want to use it in a desktop replacement scenario, then the extras do add up quite a bit.