My 110K baht/month deposit is spent pretty easily. 2 adults and a kid. The money doesn't include travel, school fees or insurance. No house or car payments. I spend freely and stopped trying to budget to much. A monthly trip to Makro is 12K easily. Some months I try to put 20K aside, but doesn't happen often.
If I was single I'd be living large on 110K. But, with family not so much. Eating out usually means a seafood joint on the beach 1200-1500 baht for 3. I eat the 60 baht meals occasionally but not often, cook at home alot.