Did a thorough inventory of machines with decent pay tables. They're listed above. These games are on three banks of machines. One is a bank of 18 slant-tops near the main cashier and rest rooms. These are quarter triple plays. The second bank has 16 slant-tops between small cashier and players club. These are also quarter triple plays. The third bank has 15 slant-top single line MG/MD machines. Looks like only the quarter games have good pays, though. Takes between $15.10 and $15.75 coin in to earn one point. 100 points gets $5 cash back. They were doing 5X points, up to 100 points most days during October. Wasn't able to check all the bartops, so there might be something playable there.

I was at the Isle of Capri, Black Hawk, on March 12. The Isle has .25 single line machines (MG/MD) with 9/6 Jacks or Better, 8/5 Bonus Poker, 9/7/5 Double Double Bonus, and 9/6 Double Double Bonus, slant-tops on the main floor in the center towards the buffet side of the casino. As far as I could tell these machines were set to about $15.36 coin-in per point (.325% cash back with normal points--countdown was set to 750 per point, 61 deducted for each max-coin quarter hand). They also had 15/9/4/4/3 "pseudo NSU" deuces wild. There is one .10 / .20 MG/MD 9/6 Bonus Poker Deluxe game in the upstairs expansion area. It seems to be set to about $14.50 coin-in per point (roughly .344% cashback). As far as I could tell this was the only full-pay machine in that area, though I typically only check .25 and below (I'm a small fry).

Caution: the group of (16) 25c MG 3x NSUD are not all NSUD. Some pay only 9 for SF.

Seems like they base benefits on points earned per trip. 500 or more points per trip over 6 months will get you a Isle Select membership. Benefits are many and detailed on their website. Monthly mailing at that level is 4 weekly coupons for $10 each, a coupon for a extra free room (Sun-Thurs) and a coupon for a free appetizer at one of their nice restaurants. For a average of 200 points per trip you can expect 3 coupons for $5 each, A weeknight room for $49 and a coupon for a 2 for 1 at the buffet.

The info on Colorado central station is correct. Its linked up with Isle of Capri and same card works at both. Get a card here and it works over at Isle, but seemingly not vice versa. Cashback better here than Isle. Isle has some 9/6 JOB triple play quarter slant tops between bar and buffet. Didn't really see much else good, but maybe I need to look more closely. They do have a promo for new players club members that will get you $50 cash over the course of five trips with $10 coin-in on each trip.

The Isle moved their new bank of 16 MG/MD machines with $1 JOB over by the food court. They were also moving some other VP machines to that area. They were just moving them so I couldn't tell what the paytables were.

The Isle has a bank of 16 MG/MD by the Slot Club booth with 9/6 JOB in $1 denom.

Seniors (over 50) can earn 2X points one day a week Sunday-Thursday and a free Buffet after earning 30 points. Must pick up sheet at booth before play.

Coin-in for 1 point has been reported as $15.75 and also as $17 and also as $20.

Farraday's offers fine dining. Buffet also available.