I'd seriously advise people to not buy MSI unless it's either a very high end board or you don't plan on overclocking.
WRONG, MSI 790FX-GD70 was the most used board for Phenom II, by overclockers according to hwbot.org!!!
You're not seeing MSI get a good rep there. However, I still recommend MSI as VFM mobos provided you won't push the OC since the features are good and performance is competitive.
Honestly, I don't know about MSI boards in the lower end so I just wont comment here. Although I hear there a 3500/- 880G board from MSI - I wonder what is that like??!
I've had very good experience with Asus with mid and high end boards both... Gigabyte boards are pretty much the same quality as Asus.
MSI - never used. but for 10-11k dude - buy gigabyte or asus!