How many sights have you been to in Thailand, where you said to yourself “Once is enough”)?
There are many sites where I feel, one you have seen it once, that is more than enough.
This can be due to the hassle getting there, the obnoxious crowds, the high cost and the place just not living up to expectations.
The floating market, Train Station Market, Mahanakhon Tower, Baiyoke Skytower and many others come to mind.
The “wow” factor tends to wear off quickly after the first visit.