OK - massive brain dump follows.
Price seems in line with typical retail value. See VMR Canada:
http://www.vmrcanada.com/used-car/values/2009-Pontiac-VIBE.html(be sure to click the appropriate options and mileage... manual transmission reduces value)
2005-2010 Pontiac Vibe and Toyota Matrix were "above average" according to the Lemon-Aid guides. (the 2002-2004 were only "average"...likely they hadn't worked the kinks in the design out) I've driven a few and like them but they were automatics; can't comment on the stick.
If you're sticking to the Vibe/Matrix, read no further. If you'll entertain other options, read on.
You might also add the Hyundai Elantra line to your shopping list. 2006 was the last of the GT hatchbacks and can be had for $3,000-$4,000 in excellent condition with not much more mileage than that Vibe. 2007-2009 saw only sedans, then in 2010 they introduced the "Elantra Touring" which is the same as the European and Asian "Hyundai i30" - solidly a "wagon." (has a D-pillar)
Mazda 3 and Ford Focus hatch and wagon are comparable cars but after looking at dozens of them in the Ottawa area, I find they get beaten to hell and rust out much, much faster than the Vibe/Matrix or Hyundais.
Smaller hatches include the Fit, Yaris, Prius C, Insight but they're all overpriced compared to the previously mentioned hatches; it's a paradox... you get more for less when you bump up into the small/small-mid sized hatches in Canada. I wish we got the Toyota Auris here. (Corolla hatchback; Euro/Asian markets only)
EDIT - we should get together for a coffee Dave!