I never said you had said so. However, would you insist on old-vs-new player agenda so hard if you believed there was no difference?
I do not want to change your mind. Ignoring your question would be rude and I only asked to indicate there is no way I can answer your question. The game algorithm does not care whether the city was built over two years or bought last night.
I am glad you found someone who can cater to you and I sincerely hope you follow his advice.