I just downloaded this game, so I have not played it yet. I will update a review on the game once I have played the game awhile.
As for playing with real $$$ to advance in the game or purchase usually the cuter or better items, everyone you must realize without real $$$ the developers, designers, writers, etc could not create or enhance the game, or any game for that matter. It takes $$$ to pay for salaries, purchase equipment, pay rent or mortgage for the building itself, supplies, office equipment, etc. i always purchase at least the initial (usually very reasonable 99 cents to $4.99 package that every game I have ever played (around 25 or more,) has ever offered. There are Some games that I have now played for over 5 years; I have spent additional $$& on. No one is telling you, you have to spend $$$ to play the game. What they essentially are saying when there are purchases of any type, is it takes time & $$$ to add additional levels, graphics, items in the game, in order to keep the game, whatever it may be interesting & challenging for people to play, in order for the game to survive.