I dropped from diamond to platinum to linoleum over the last year and really I don't see a difference in the perks except for parking (which in the whole scheme of things doesn't matter much in terms of cost unless on very busy days they limit valet to diamond or diamond/platinum members only). One of the reasons may be that AC is hurting tremendously since PA allowed table games in their casinos. It sure beats driving the Parkway and avoiding shore bums on the weekends!
As long as I get discounted rooms or at least rooms in the casino I could care less for the other comps from them. Considering I play the $50 BJ or $25 craps tables even a $100 meal is just not worth it. It's just 2 hand loss. I rather be able to get up when I want to rather then beg for a comp which takes takes them at least 15 minutes to hand it to me and all this time I may have played several hands.
Key is to get up when your are winning and pay for the cheap stuff!