One thing to consider when living in a border city like that is what advantages each state might have to your declared state of residence. With Arkansas, you have a state income tax which you do not have in Texas. On the other hand, the Arkansas CHL covers some states that the Texas one doesn't. For example, the AR CHL covers NV, OH, NH, and WA, whereas the TX one does not. AR only issues CHLs to residents. And then there are the property taxes. The median home prices in TX are slightly more than the ones in AR. Whereas TX collects about 1.81% of a property's value each year, AR collects about 0.52%. LA is even lower with 0.18%.
http://www.tax-rates.org/arkansas/property-tax" onclick="window.open(this.href);return false;
http://www.tax-rates.org/texas/property-tax" onclick="window.open(this.href);return false;
http://www.tax-rates.org/louisiana/property-tax" onclick="window.open(this.href);return false;
Depending upon what your income might be, the reduced property taxes + the state income tax in AR might be less than the no income tax + increased property taxes in TX.
As engineers, my wife and I have worked on various out-of-state projects over the years. Some have been for extended periods of time. We consider these places as temporary quarters and keep our official residence as Texas due to the fact that Texas has no state income tax. If you own property in multiple states, it might be advantageous to have one state vs the others as your "official" residence.