What you want to do is great but there are simply too much things for an inexperienced person like you to take care of. No one is making Psychic Readings to decide if it is worthy to invest millions of dollars in such a business, even huge companies that want to invest in something like that are afraid to build such an entertainment complex, they need to research the market and check in how much time they will return their investments.
A full entertainment center is a great business. However, keep the ROI in mind because no business is ever profitable if you don't live long enough to have your investment returned + money earned (if a business would return the initial investment in 70 years then most probably you should forget about it)
Your business idea is very good and I think you can include some other games that attract people. Swimming pool, online game and poker these types of game people like most. Apart from this you can offer special vouchers and plans to your regular costumers so that they will stay at your service.