I have not been to a club night or otherwise in over 25 years. It's just not my thing. But I am curious what is the difference between a top table and a regular table? What even goes on at a regular table?
At these venues you aren't paying for the table per se... these are generally minimum spend amounts for drink/food (pre gratuity).
For ticketed events, table reso also usually includes admission & line bypass for x guests.