I'm so confused...

First book was published by Bonanza Printing; no date
coupons included are:
El Cortez free breakfast
Free gift at the El Cortez
50 cents worth of nickels at the Western
Free bingo at the Western
50 cents worth of nickels at the Royal Inn
Free gift at the Royal Inn
(Coupon torn out here)
Free souvenir at the Union Plaza
6 free bingo cards at Club Bingo
Free gift at the Las Vegas Club
Inside back cover advertises prime rib at the El Cortez for $4.95, and the 24-hour poker room 7-card stud no ante $1-$3 limit

second book; Bonanza printing; no date
includes coupons:
free cocktail at the Ambassador East Motor Inn
Free breakfast at the El Cortez
Free 40-cent Keno ticket at the Western
Free gift at the Las Vegas Club
Free souvenir at the Barbary Coast (on the strip)
Free bingo at the Western
Free gift at the El Cortez
Free souvenir at the Golden Nugget
Free souvenir at the Union Plaza
6 free bingo cards at Club Bingo
Inside back cover advertises prime rib at the El Cortez, price has gone up to $5.95; the 7-card stud is now $1-$2 limit

third book; century graphics; 4/89
coupons include:
Free breakfast at the El Cortez
Free gift at the Las Vegas Club
2-for-1 meals at the Gold Spike
Free souvenir at the Golden Nugget
Free souvenir at the Union Plaza
Free gift at the El Cortez
Free bingo at the Western
Free gold board with the purchase of 3 blue boards at the Gold Coast (bingo)
2 meals for 1 at Jackie Gaughan's Hotel Nevada & Casino
10% off Ajax car rental, located at the Western Hotel
Inside back cover has a promotion for the El Cortez Social Security contest; still playing 7-card stud, but no limits are mentioned