Friendlier gun laws: check.
Cost to get a decent piece of property...unless I choose to commute from Winchester or Fredericksburg, not so much.
Shorter commute: some of the worst traffic around is in NOVA. And, unlike the District and MD, there are so many cul-de-sacs, it's almost impossible to take the side roads to avoid the traffic...at least so far as I've seen in the past 14 years since AF retirement.
Taxes: Yes, they would be lower if I lived in Prince William County or farther out (I actually did a comparison several years ago...Arlington County and Fairfax County local taxes make up the difference between MD and VA state taxes pretty quickly).
Oh, and one other thing. Virginia now has Terry McAwful as governor...and NOVA is getting bluer by the minute...not to make a ridiculous claim that MD is better, but it's a whole lot more likely that another McAwful is elected than, say, a Cuccinelli.
>> Virginia now has Terry McAwful as governor...and NOVA is getting bluer by the minute <<
Yeah, but we still need your vote over here. Every little bit helps!