(Elaborating on my previous posts). In the case of "Burn Notice" season 2 and "24" seasons 7 & 8, the other big reason why I didn't bother buying the bluray versions around a year ago (besides poor reviews of the picture quality), was that the prices were around $40 or $50 each (or higher) at the time. Eventually I ended up buying seasons 7 and 8 of "24" on dvd for $15 each or less. Even today, I still don't think these bluray sets are worth $40 a pop to me. Though I may possibly pick up the bluray versions as an "impulse buy" if I ever see them in the bargain bins for less than $20 each, and if I am still interested by then. In the case of seasons 1 and 9 of CSI, I found both bluray sets in the bargain bin for less than $20 each. (I didn't own either season on dvd previously. I have season 2 on dvd). For Firefly, I already have the dvd version. The main reason I picked up the bluray version, was that I found it for around $11-$12. It was a pure "impulse buy". (I paid more for the dvd version around two years ago). At that low price, the bluray was a no-brainer double dip for me.