Movie Talk: Buying Vs. Renting

Now I have renting movies in the past and it has save me money the reason i rent a movie is to see if it is re-watchable for my self. Now there are a lot of people who rather just buy the movie and say screw it if that don't like it, Where on the other hand there are people who only rent movies because they don't want to pay a whole bunch of money for a movie that they never will watch again. Personally I will only rent a movie if i am unsure of a movie and haven't seen it in some other way. So i rather pay 5 dollars on amazon to rent it then pay 20 to watch a movie and hate it. Now what are the pros of buying a movie are you only have that one cost so if it a movie that you'll watch hundreds if not thousands of times then yes it more cost effectively you pay a single of cost of what it is where as renting it can cost more money if you went it over again over making it in the end cost more. now if it a movie you will only watch once it a waste of money so it all in your personal thinking. with that said happy reading  and let me know in the comment your thoughts