sorry but Sony exclusives likes Horizon Zero Dawn are not bringing any new customers to Sony. The vast majority of Sony exclusives are not "system sellers". PS owners will buy them of course but they wont convince an MS, Nintendo, or a new console owner, to buy a PS4. No one wants to buy a console because of a 6 hour semi-interactive movie.
I sorta see that logic, but also don't. I think its mainly nostalgia that makes people but a console for a specific game. It's harder to get people to buy a console just for a new IP.
would I buy a ps5 for a new killzone or resistance? 100%. I buy every Nintendo because I love Mario and Zelda games. I'd buy the new Xbox alone just to play the new hellblade, gears and halo.
Would I buy a PS4 just to play GoW and horizon, probably not. But would I buy a ps5 to play the next gen versions of these games? Deffo. I enjoyed both on the PS4 and can't wait for the next installments.