My favorite stops are:

Tropicana Legends (I always ask the cage for a $5 and $25 GO)
Gaming Times (Bill has a fine collection, let alone many items for sale)
Fiesta (Gene Trimble, a gentleman!)
Gamblers General Store (variety)
PaulSON (see the source of fantasy chips so you don't pay more elsewhere)

Hoover Dam (Boulder Dam)! Underground tour is a must. A tribute to Art Deco.
Fremont Experience (Four Queens while you are there)

For the kids: The marshmallow factory, it includes samples!

Best kid arcades: Game Works (next to MGM, across from Monte Carlo), Excalibur downstairs, Luxor fun level, Treasure Island. Mandalay Bay has no arcade!

Liberace Museum is peculiar

Be prepared to lose sleep, and money! Always use valet and tipping (toking) is $1 (min) upon leaving. Cashiers are responsive to toking in searching for chips (but mostly when things are slow).

Enjoy, I always do!

Jim Follis