Probably throughout next year as well.
For some context, I checked some stores here in Ireland.
- Gamestop - PS5 not available, Series X and S available both new and used
- Smyths - PS5 not available, Series X and S available new
- Curry's PC World - PS5 not available, Series X and S available new
- CEX - PS5 sold 2nd hand for 725€, they offer 525€ (cash) to take one off your hands. Series X sold 2nd hand for 450€, they offer 328€ (cash) to take one off your hands. Series S sold 2nd hand for 270€, they offer 64€ to take it off your hands (values for Boxed items, PS5 values for Disc version)
The CEX example is actually really cool and shows where demand lies: They will offer you over price of acquisition for a PS5 and sell it for over 700 quid, while the Xbox can go as low as 64 quid, because nobody gives a shit about the Series S.