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Ouch: The Raspberry Pi 5 just hit an eye-watering $385
(www.pcworld.com)
This is a most excellent place for technology news and articles.
My first Pi was a Zero. It came free with a PC magazine. It was taped to the cover. I think the retail price then was something like $5
Pi Zeros sell nowadays for 13 EUR. I don't know when you got yours but it might be just regular inflation since then.