Do you need an exit ticket when entering Thailand on a DTV?

Do you need to have a ticket out of the country when you're on a DTV and going through customs? I've always had a ticket out of Thailand for one reason or another when coming into the country but the next time I come in I won't need a ticket out for any reason (even though if history is any indication I'll be leaving the country sometime before 180 days is up)..if I do need one I know I can always get a cheap one-way to HAN on TG when I need it.