There shouldn’t be any limit.
The limit will come once your ego kicks in and you start to judge others based on these materialistic things.
Otherwise if you do not have any superiority or inferiority complex, then all is well.
For instance, I want to be successful, I want to be able to do everything but not to show the rest of the world, but only to improve myself and I will never compare myself to to others nor will I judge others because everyone has different goals, different priorities in life. No one person is the same.