If you want to go there often, you'd better apply for a membership. Of course, it's free. As for the membership of Huazai Tiandi, please wait until conditions permit!
I had a chance to get it last year, and I didn't know until I read the activity information of that website.
As for the others? Then I don't quite understand!
But you can get the best, don't be discouraged if you don't get it!
There are plenty of opportunities and Andy will continue to work hard ~ ~ ~ ~ ~ `.