The only reason, at this moment, would be if you could not afford to build a system with a 7800X3D. Slightly older gen Intel processors (12600kf / 13600kf etc) provide great value for money in the $250 range, and you can run them with ddr4 memory so you may be able to save money by using an older ram kit. Going AM5 is still the clear best financial choice in the long run if you plan on upgrading again in the next 5-8 years, but it really depends on your budget. If you’re an extreme high roller, you could also just go for a 14900k, which would be the “objectively best pc” if you don’t consider the price.
The only reason, at this moment, would be if you could not afford to build a system with a 7800X3D. Slightly older gen Intel processors (12600kf / 13600kf etc) provide great value for money in the $250 range, and you can run them with ddr4 memory so you may be able to save money by using an older ram kit. Going AM5 is still the clear best financial choice in the long run if you plan on upgrading again in the next 5-8 years, but it really depends on your budget. If you’re an extreme high roller, you could also just go for a 14900k, which would be the “objectively best pc” if you don’t consider the price.