So, let me analogize.
I don't think reading a few reviews and then taking a 15 minute test-drive of an automobile is sufficient. After all, I cannot extensively test a car in all situations in just a short span of time. Therefore, it's ok to steal the car from the showroom, play with it for a few weeks and when i realize it's not for me, just dump it somewhere. Of course, if I like it, and if passes all my rigorous tests, I'll send the dealer some money.
Makes perfect sense.
Pete