There are plenty of players to go round. Some of them will be decent too. They cant buy all the best players. City and Chelsea's spending guarantees only one thing. A big overdraft. It is no guarantee of EPL titles, Champions League success or even qualification.
How much did Chelsea spend last year? £50m on Torres, £20m on Luiz, and Then something similar on Mata. They still didn't qualify for the CL. To their credit they won a very big pot but the spending does not buy you certainty. Better players give you a better chance and nothing more. Remember City and United were put to the sword by teams with far smaller budgets in Bilbao etc. Chelsea were nearly embarressed by Napoli.
Players do not come for the stadium. They come for money and trophies. Some may come for the club. hankfully spending wisely is still the most important thing. We've not done so well on that front recently so cross fingers we can do better from now on.