I read all of the comments posted on the topic in your link…
I have (and love) Netflix.
I agree w/ the posters who said “what is the point?”, in that you can always rent it again…it also takes time, effort and storage space (be it shelf or computer hard drive—)for storage.
If there is something that I must have, as I will want to watch it frequently (e.g. Rudolph the Red Nosed Reindeer), I would rather have all of the packaging and extras….
I just wait until there is a buy one get one sale on www.deepdiscount.com and use my cc that gives me a $6 rebate for online purchases. I have been able to obtain many of my kids videos, 2 at a time, for a total of less than $1.