Courtesy eRobin, who also wanted to know why I'm always dissing Turner Classics. It's love. Simply out of love. TCM is the only channel I ever check the listings for, and when it lets me down I fall hard.
Total number of films I own: Depends on how you count. A conservative estimate is that there's 700 films stashed somewhere in the house, representing maybe 500 separate titles. I "stole" my first Betamax in 1977 or '78 for $500--it was a demo. I had around 200 titles on Beta when the format became untenable. Most, but not all, have been transferred. I have a filing system for VHS tapes but it's seriously behind at 427 titles. And that doesn't count teevee series like Crime Story, Wiseguy, and especially nearly every Simpsons episode. There's a lot of videotape lying around.
The last film I bought: Rules of the Game and Drôle de Drame (Bizarre, Bizarre) at some Border's 2 for 1 sale or something. I love DVD but it's a rare occurrence when, as above, I buy things I already have. I generally live with the videotape versions. In the case of Drôle de Drame the original screen aspect was so odd that the first videotape version I bought cut everyone's head off through the whole film, and the second wasn't much better. The DVD is thankfully pristine.
The last film I watched: By coincidence, the original 1945 version of The Big Sleep which was never shown in theatres (they decided to expand Lauren Bacall's part). Doghouse Riley, that's a funny sort of name.
Five favorite films I either watch frequently or that mean a lot to me: It has to be ten, and that's not nearly enough. The ten I've watched most often, I guess. are: Renoir's Rules of the Game, Jean Vigo's L'Atalante and Welles' The Magnificent Ambersons, all of which were famously lost or mutilated or both; the Coen's Blood Simple, Kubrick's Dr. Strangelove, Fellini's The White Sheik, Sturgis' Miracle of Morgan's Creek and Hail the Conquering Hero, Leo McCarey's Ruggles of Red Gap and Billy Wilder's Sunset Boulevard. Which leaves out way too much.