I was in Vegas just a couple months ago actually, so here's a run down for ya.
“Manhattan Express” at New York New York which was my least favourite of the three. You do get a cool, brief view of the strip, but it's pretty rough.
“Canyon Blaster” at Adventure Dome (Circus Circus) was by far my favourite coaster there. They've got a couple other rides and it's a decent enough park.
“Speed” at Nascar Cafe/Sahara Hotel was fun too. It's walking distance from Circus Circus. Interestingly, they have to let the breaks cool down between launches. I was the only one in the station at one point waiting to ride, but they wouldn't let me board until the proper time had passed.
Lastly, the rides at the top of the Stratosphere are extremely intense. They have a SS Tower ride, and two other “simple” rides that send you over the edge of the tower. It’s just crazy. I’m terrified of heights, and enjoyed kissing the ground when I got off the rides.
With the exception of "Manhattan Express", I got day passes for the other three casino's. All ran around $25(each) or so.
Vegas is huge. The pictures don't do it justice at all. Even the walk from the side walk to the front doors of a casino can be a bit of a hike. My friends were at The Imperial Palace, and I stayed at Circus Circus. On the map, they were two blocks away, however it was just over 30mins to walk it (and I’m in good shape) You can’t hail taxies on the street, but almost every casino has a Taxi Valet, and the lines (if any) move really quickly. They’re not overly pricey. There is also a $5 all day pass for “The Turbo” (…I think that’s what it’s called), which is their bus service.
Lastly, there are a lot of free things to see, and some with a nominal fee.
http://www.vegas.com/attractions/
A must see is the Bellagio Fountains. It’s absolutely amazing for a water show. It runs every 15min’s, and they do different songs each time. There was a really cool Martini Bar @ MGM called Centrifuge, that’s really low key….but…every 30 min’s the bartenders (male & female) get up on the bar and do one quick dance. Tres Cool. And the Hofbrauhaus was lots of fun too. It’s a German Beer hall where you sit at these benches, there’s a German Polka Band (playing some modern music), amazing food & of course, big German Beers. It’s a nice place and lots of fun. It’s a family atmosphere for sure (and can be a fun place for the guys too).
I saw Penn & Teller while I was there, one friend caught Zumanity, and another saw Matt King. We all thoroughly enjoyed our shows.
I had a blast while I was there. I don’t gamble, think I dropped a total of $23. We had a great afternoon just walking through some of the casinos down one side of the strip. We spent one evening Downtown, which sorta was neat, they’ve got a dome overhead that does a really cool light show.
Like I said, I had a blast, some of us are thinking about going back in December. Any other questions, go right ahead and ask. Look forward to hearing about your trip. I’ve got some pic’s on my Facebook if you’d like to see’em