The 5 while claiming 2x performance was considered to be the start of offering no value for many users since it started above $100 for the 16 GB model, which many small form factor used PCs from EBay could surpass in performance for projects that required no GPIO (like self hosting apps).
Before 2020 each new generation would offer a performance and memory boost at similar prices to the previous.
Raspberry PI 4 MSRP when introduced (2019): $35 (1 GB) $45 (2 GB) $55 (4 GB) $75 (8 GB)
Raspberry PI 5 MSRP when introduced (2023): $45 (1GB - added later) $50 (2 GB) $60 (4 GB) $80 (8 GB) $120 (16 GB)
The 5 while claiming 2x performance was considered to be the start of offering no value for many users since it started above $100 for the 16 GB model, which many small form factor used PCs from EBay could surpass in performance for projects that required no GPIO (like self hosting apps).
Before 2020 each new generation would offer a performance and memory boost at similar prices to the previous.