@Tod ********
What are the statistics on refusal of entry? I have been traveling to Thailand on a regular basis since 1991 and never had any issues related to onward travel. I tend to buy a one way ticket and before my visa expires I find another chap flight home or else where. You can also get good deals on buss to Laos or Cambodia . If I am asked I just tell them my plans. With fewer flights to Thailand as a hub city it is in Thailand's interest to encourage one way flight options. Cheaper way to travel if you are an experienced traveler. More fun as you can change options.