@Christopher *******
ok I will try to explain.
1 Married visa is better if you are planning to work IN THAILAND, mostly if you work for your wife company etc...
2 DTV is better and cheaper if, and only if... You wanna be free to leave Thailand and come back without wasting the time in immigration ,and the DTV also stops counting when you leave the country, but the most important, if tomorrow you are not married anymore, your visa only depends on you. Another benefit is that your money no need to be in a Thai bank, with the marriage visa you need 400K every year in the Thai bank.