Mario,
Yup. It's confusing alright.
For me - the chessy keys are too big of a hurdle to overcome. It's not that I need fully weighted keys, but I DO need a good, solid feel under my fingers or I tend to hold back, and then the music suffers.

Dynamics are very hard to compromise, and the 2000's keys just don't give me what I need. I'd rather play something that has less features, as long as I can really PLAY it. I need that solid response to remind me that I'm doing the driving.

I think a lot of players tend to delevope a lighter touch after playing these arrangers because their left hands are doing less and less in the way of actual rhythmic playing.
If all you do is hold your hand down in a chord formation, then a light feel will never bother you, I suppose - but for me, I need the tighter feel of a solid keypad because I play so much full piano and split bass stuff. The whimpy keys just don't give me enough "oooomph". Ya know what I mean?

I saw a friend at the shore this week that useually does a "dueling piano" routine, but his partner called out that night. He brought his son in to fill in on the drums, and it was a great sound. The kid is a terrific drummer, but the pianoman did not do anything different than he would alone. NO left hand bass, no synth layers - straight, strong, rhythm piano and vocals. It did not sound like any thing was missing. He does a style similar to what I do on the piano, although he's much more advanced than I. We play full, two handed chords that include mostly, I-V-I in the left hand. That gives you a strong, powerfull bass that really fills up the arrangement. His routine is mostly a barroom sing-a-long, so he uses NO effects on the vocal (totally dry) and he is constantly stopping for effect during the songs to get the crowd involved. It's a strange concept, if you've never done it - but it really ties a room together and makes a "Cheers" atmosphere. Everyone is involved AS A GROUP - no singers on mics, no one storms the stage. They all just sing from their setas. You know, the crazy hooks that everyone knows in Sweet caroline, Brown Eyed Girl, and that stuff. (Bump, Bump, Bum ! or Sha laa laa laa laa laa laa .... )

Very entertaining way to work a room, but VERY tiring, and very intense. You can't do 40 minute sets in that routine - better pee at the beginning of the set, cause you're gonna be on stage for a while !

Another thing he does that works is this:
He askes that requests be written on a dollar bill and just placed on the piano where he can pick from them. Then, as he picks them - HE drops them in the bowl to show the crowd haw it's done. It's a polite way of begging that really brings the room together, and feeds the kitty quite well.

No requests are played if they are simply shouted out. They must be written on a bill. People also just drop some cash in at the end of their stay as a "thank you" but the bulk of the money comes from the requests.

Just one man's way of doing it. See if it works for you.