Well, it's just that you've been whining since several posts ago, that you're "tired", it's "difficult" to travel with kids and so forth. Well, that's just the way it is with 3 kids and especially if you're on the DTV, which requires travel. It can be tiring having even 1 or 2 children. Moreover, bringing your children to experience this part of the world provides them with exciting and interesting opportunities to see the world and experience different cultures. From Phuket, you can be in Myanmar, exploring some of the most picturesque and pristine islands in the world in just 4 hours. You can be in Malaysia within an hour by flight or a few hours by car. You can fly to Ho Chi Minh City in Vietnam from Phuket in 1h20m as well. There are lots of options and with children, any border run can be an opportunity to turn it into a vacation in order to see and experience new things given how close everything is.
I never accused you of lying. On the contrary; it just sounds like you're roughing it and I wonder whether that's a good way for your children to be living. That being said, it's your business of course.
Alongside Ban Khao Din, the Thailand-Cambodia Friendship Bridge at Nong Ian, currently open only to trucks, will be officially designated as the next Thailand-Cambodia border crossing and open to foreigners, probably sometime this year.
Once this happens, it will become by far the most convenient and fastest border crossing between Thailand and Cambodia. Buses will also be using that border too, including Bangkok-Phnom Penh and Bangkok-Siem Reap services.
However, train passengers will continue to use the Aranyaprathet-Poipet border because the train passes through there.
Which is why Ban Khao Din is a good alternative. It's almost equidistant and the officials there are much friendlier and don't randomly deny foreigners.
Take a bus to Siem Reap and make a weekend trip out of it. It's such a chill place.
On the way back, get a taxi to a different border (perhaps Ban Khao Din) to avoid the notorious Aranyaprathet, which has a habit of denying entry to visa holders, including at least one DTV holder.
Another option is to travel to Laos, staying in Vientiane, Luang Prabang or Savannakhet for a couple of days then travel back across the border. Time and money can be saved by flying to Udon Thani (for travel to Vientiane, Vang Vieng or Luang Prabang) since the airport is a mere 50km from the border. For Savannakhet or Tha Khek, you'd fly to Nakorn Phanom and go from there. There are cross border buses from Udon Thani to Vang Vieng and Vientiane.
Aranyaprathet is the closest but not by much. Ban Khao Din is about the same distance and a far better place to re-enter the country. Also, much faster since no one uses it.