Adobe's photographer's suite (or something like that), which includes PhotoShop and LightRoom is around ~10$/month. I do not think it's that expensive, as you would need to subscribe for 3-4 years, before you pay same amount as for older versions of PhotoShop.

Yes there are cheaper alternatives from affinity of pixelmator, but from photography's point of view PS + LR are still one of the best, feature rich and user friendly tools for photography.