Here's the entirely too long response I wrote one of the last few times this question was posted:
The The Auto Collections at the Linq, I was there around this time last year, I never thought I'd ever see an RS200 in real life, and I saw 3 the same day, an Evo and a pair of Homologations, they're all for sale even. They have an XJ220 and an 037 Stradale, as well as a lot of other cars you're average Big 3 fan wouldn't give a second look, but well worth the $13 admission for your typical GRMer.
I've made 2 different 4-5 night trips in the last 3 years, I don't enjoy gambling. First trip I made ~$33 last a really long time at black jack and slots, but that's as much gambling as I did. Second trip I didn't gamble at all.
We've seen several shows and ate at a lot of places.
Blue Man Group was fun, Jersey Boys was WAY better than I expected, KA was amazing, Bodies: The Exhibition was really interesting and a little creepy. Penn & Teller, and Michael Jackson One, both were really good as well. I'm not much of an MJ fan, but those Cirque folks put on one hell of a show. We went to the aquarium at Mandalay too, I was pretty underwhelmed by it, I recall not feeling I got my monies worth there. I didn't care for Fremont St., the Discovery Chanel show I saw about the LED cover was better than seeing it in person.
Food/Drinks:
Henry (Cosmopolitan) - Good breakfast.
STK (Cosmopolitan) - Awesome steak, get the truffle butter, great lobster mac & cheese. Holds the record for most expensive meal I've ever eaten.
Burger Bar (Mandalay Bay) - Nothing spectacular, great beer selection.
Noodles (Caesars Palace) - Good authentic Asian grub, there were a lot of actual Asian folks eating there, cheapest meal I had in Vegas.
Joe's Seafood, Prime Steak & Stone Crab (Forum Shops) - Surf & Turf! King Crab was great, steak was great, Oysters Rockefeller were great, service was outstanding, best waiter I've ever had.
Diablo's (On the Strip near NY-NY) - Came highly recommended, it was typical Tex Mex, nothing phenomenal.
Holstein's (Cosmopolitan) - Best burger I had in Vegas pretty high on the list of all burgers I've had, it's called the "Gold Standard."
Vesper Bar (Cosmopolitan) - conveniently located by the elevator to our room, a little snobby, but I discovered my new favorite mixed drink, Moscow Mule.
Bond (Cosmopolitan) - GoGo dancers, girls swinging from the ceiling, looked fun. There were several empty tables, we sat at one, waitress came and told us it was a 1 bottle & $275 minimum, our jaws on the floor we got up and left quickly.
The Chandelier (Cosmopolitan) - A 3 story bar that IS a chandelier, drinks were nothing special, service sucked, but the bar was neat.
Mon Ami Gabi (Paris) - Great food, steak, muscles, pâté, cheeses, sit on the patio and watch the fountains at the Bellagio.
Hexx Kitchen (Paris) - Decent food, their take on chicken & waffles is a little weird, I wouldn't recommend it. Their complementary chocolate was the bitterest thing I've ever tasted, maybe they didn't like me?
The Grand Wok (MGM) - Only had the Sushi, it was good, but for what I paid, I'd expect better.
Tom Colicchio's Craftsteak (MGM) - Recommended by our concierge at Tropicana, it was good, steak was good, but STK and Joe's are better.
MGM Grand Buffet (MGM Duh?) - Go early or late to miss the crowd, kind of pricey, but everything is, endless mimosas provided with your meal, everything was above average for a buffet, but they don't know how to make gravy, and the chef(s) seemed to want to put chorizo in everything.
Tender Steak & Seafood (Luxor) - Scallops were great, had a cheese platter, you got to pick 3 cheeses from a big list, and it came with quince paste, we didn't know what a quince was, but we liked it.
Well, I got a lot done at work this afternoon.