Been a member of Netflix for the past four years or so. The service has gotten a lot better recently and they don't seem to be throttling people who end up going through a lot of movies each month. I'm able to get new releases far easier than I used to. They seem to have just about every DVD that exists and their prices have come down a lot over the past several years. Really good way to catch up on television shows that you've missed.
Blockbuster is NOT better than Netflix. I've been a member of that service and quit after two months. The selection isn't as good, they give you edited versions where Netflix automatically sends you the "uncut" or director's edition of most items you choose, and the shipping time for Blockbuster is horrendous. Netflix gets me my stuff in one day. I waited three days to get Blockbuster stuff. Also, as Keith noted, they suck at checking in your returns and will commonly claim that they never received it. I was charged sixty dollars for "keeping" three rentals that I actually returned. Blockbuster is shit.
Okay, there's my commercial. Join now.
http://www.keithandthegirl.com/netflix