terryfromhawaii,
We did not have concierge. We stayed four nights, I think, Monday - Thursday nights. I can't remember exactly how much we paid. I think it was either $700 or $800 a night. I know that we added a night on top of our package and I had to pay rack rates

for the extra night. That night was over $900.
It was expensive, and I really wouldn't want to pay that much again. But, it was the kind of thing where I knew what I was getting. I got a four star hotel within walking distance of the park.
As an alternative, you could look into suites at good neighbor hotels. I know I looked at the Tropicana and the Carousel. Their suites have gotten mixed reviews, but they are a much cheaper alternative. You could also try to get connecting rooms in regular hotel, such as Candy Cane or HoJo's. That's a bit riskier because you are not guaranteed connecting rooms, but, again, it's a cheaper alternative.
Good luck!