Not sure what you mean by 'needing a room $10K'?? But, for the other things you mentioned, we did our homework - built in a watershed, 2-5 acre plots, not much that could bring the prices down - even in this last 'downturn', prices remained mostly steady in this area. No desire, or plans to leave area. In fact, nothing we've ever experienced would make us think renting would have been better. Definitely hasn't been any depreciation, things have just gone up. We would not have purchased in an 'iffy' area, or in a neighborhood with older homes showing signs of going downhill.
But, it's to each their own, so I respect the decisions of others.
None of these issues have come close to applying to us - we definitely did our homework.
Again, to each their own!!