Two more DC rinks

[Query]

Gee. Aren't there enough DC area rinks? A couple new seasonal outdoor rinks have opened up since 2017, that I didn't know about:

1. At the roof top on the Watergate Hotel

  https://dc.curbed.com/2017/11/13/16643652/watergate-hotel-ice-skating-rink
  https://www.thewatergatehotel.com/dine-and-drink/top-of-the-gate
https://www.google.com/maps/place/The+Watergate+Hotel/@38.8995335,-77.0574658,17z/data=!3m1!4b1!4m7!3m6!1s0x89b7b7b2b79a3b6d:0xc7748db45c4c9750!5m1!1s2018-08-05!8m2!3d38.8995335!4d-77.0552771

This is a very fancy hotel, which some of you might have heard of due to a 1970's era political scandal. I wouldn't be surprised if it is somewhat expensive. While the rink is relatively thin (70'x20') rink, it might have a nice view of the city and the Potomac River

2. On a Wharf on the Washington Channel off of the Potomac River and Anacostia Rivers, a little south of the Tidal Basin.

  https://www.wharfdc.com/wharf-ice-rink
https://www.google.com/maps/place/960+Wharf+St+SW,+Washington,+DC+20024/@38.8798734,-77.0286682,17z/data=!3m1!4b1!4m5!3m4!1s0x89b7b776b6984aa1:0xd3acc512848dc716!8m2!3d38.8798734!4d-77.0264795

Obviously, neither is open at this season of the year.

It's difficult for me to understand why DC, a fairly warm city, has so many seasonal outdoor ice rinks, and only one indoor ice rink. (Most of the area rinks are in the suburbs.)