@Dragan *********
Your thinking is of a backpacker grade Thai resident.
With the Yellow Book, Thai ID, many other revenues become easier.
For example, with the Thai ID (Pink Card) you never have to carry your passport on you, no hotel will log their TM30 with Immigration, never more new TM30.
Buying a car or vehicle, takes 2 hours rather than several days to transfer the ownership.
Those who can not get the Yellow Book, spray me with comments how useless it is.