1) So you can kick yourself for not having watched sooner. Especially the last 7 or 8 minutes, with executive producers Josh Applebaum and Scott Rosenberg promising in an interview with Michael Ausiello that, “There is a very clear and definitive answer as to what his journey has been about and how all the pieces over the past 17 hours play into that journey.” Adding, “If there’s one thing we feel pretty good about it’s that in the afterlife of LIFE ON MARS on DVD or wherever, it will exist as a cohesive, complete thought that will all make sense.”
2) Because even if you weren’t there for the beginning, you’ll be there for the end. Which means after you’ve finished kicking yourself for not having jumped on the LIFE ON MARS bandwagon sooner, you’ll have already saved $1.99 when you inevitably head on over to iTunes to download the rest of the series.
3) This may be your last chance to see Harvey Keitel on TV for a while. As he joins the long line of big screen stars (including: Ray Liotta and Christian Slater and Geena Davis) who couldn’t cut it on the small screen.
4) Both CSI: NY and LAW & ORDER are repeats.
5) So you’ll appreciate it all the more when theTVaddict.com runs our exclusive LIFE ON MARS post-mortem interview with showrunners Josh Applebaum and Scott Rosenberg tomorrow. 
6) Inspired by frequent commenter Todd W in NC, Reason #6 is that ABC should be rewarded (read: with viewers) for allowing the LIFE ON MARS team enough time to craft a genuine ending for the series. Something networks far too often (read: almost always) fail to do.
Don’t miss the LIFE ON MARS series finale airing Wednesday April 1 at 10PM on ABC (GlobalTV in Canada)