I'd say the access is good as well, but what about access to drinkable water and electricity? What's the average cost for septic in that part of TX? What does property tax run per year? Will the property taxes go up if the land is developed for its minerals? Also how active is that small airport that is very near the east side of the property? What was the agricultural income from the property for the last 5-10 years?

I'm not interested in the property (don't have that kind of disposable money right now), but those are just the top of the list questions I'd ask before considering any rural property.