Is every movie you purchase Blu-ray?

[Djlilt]

Hello all! I'm a newbie here just got a ps3 about a month ago, for the purpose of using it as a blu ray player and occasionally for games. I have been collecting regular DVDs for the last couple of years and my collection was going good until people began to borrow and not return and my babies becAme able to put on movies by themselves, destroying most of them to the point of poor playback. I finally decided to give up and start a blu ray collection (technology and most people I know don't have blu ray players at this time persuaded me to take this route). I want to know if you guys only buy blu rays or do you still buy DVDs and only certain titles on blu ray. I am trying to decide whether to go all blu ray or only blu ray for movies that would be best viewed in blu ray. Besides price the only thing I'm torn on is the actual case of DVDs vs blu ray. I have gotten some really good deals on new blu rays off eBay so I rarely pay 30+ for them. Just please offer your advice on this topic.