I discussed this yesterday, or was it the day before? 
so I am not going to reiterate it.
You don’t have to purchase something as soon as it’s out. You can wait for reviews to be produced. Yes, YouTube is a viable way of checking on how products are received. You can also look at other products released by the same developer. It’s really not that difficult. You don’t need to hire Columbo to do the work for you. It’s really not that difficult.