Something not so heavy, Netflix

Netflix, a great service right?  Yeah I thought so, but it really irritates me in the sense that they offer this service of streaming video, yet it's not reliable.  You can get into watching a series and suddenly it's gone.  People have to work, have kids, spouses, lives.  We can't or shouldn't be planted in front of the television watching tv 24 hours a day, yet they had the who series of STARGATE series's which I started watching, suddenly there gone.  Then one day someone from school said I should check out this series ancient aliens, some of the episodes where interesting, as of this Friday thier gone.  I've lost track of the shows they've done this to me on, Babylon 5, stargate, penn and teller and so many more.  So why am I paying for this service, really I could save that money and just buy what I want on blu-ray and own it forever instead of getting to the good parts of a show and see it get lost?  I've heard a lot of people talking about Netflix starting thier own original material and bringing back much loved series like firefly.  Yet I worry we love firefly, let's say Netflix does bring it back and writes it the way they wanted it?  I'm sure they won't have joss whedon to kick around.  Then they decide it's to expensive and cancel it agian.....  Then what?  I'm also really tired of talking to people at netflix only to be told the shows will be back in a few days, maybe a week, yeah Babylon 5 got zapped a year or more ago, so I guess be careful what you wish for, rarely are things as good as they seem.