I'd say that its a pretty good time. I think it was updated in October or late September...So I think you're fine. Umm, maybe our buyers guide should include software too..
You know, 1.5 is pretty sweet - but with MWSF only a month away I'd say wait. That's not a long time, and if a new version comes out you'll be kicking yourself.
That's just my opinion, and isn't really based on any analysis.