My test (in November) was on time and expensive - as per above.
At the time, I figured it was worth the extra $$$ to salvage my trip. It worked!
Since then, I understand Costco does if for less? Haven't tried.
in AMS, my PCR test for rtn. travel was cheaper (79 euros).
The Netherlands knocks it out of the park when it comes to antigen tests. You can get them on most street corners and they are free.
It is sad to see so many Canadians waiting hours in long lines for tests. Holland was much, much better.