I do agree for the most part, however it really paid off when my wife wanted to come along too. We did it a few times before I got a membership and it was about $50 for the both of us. You just have to do that 3 times, and go by yourself a few times for it to be worth it. I had no problem shooting during the week, but I can def see where some people wouldn't be able to take advantage of the opportunity.
As you stated, it doesn't make sense to buy a membership if that is the case.