Heading to Vegas this weekend for the first time in 15 years or so. Has the bus service on the strip improved? It was horrible years ago, buses always full and driving past stops because there was no room.

The bus service on the strip has been replaced with a double decker service called The Deuce. We took it in the afternoon and it was crowded, but I didn't notice the driver going past stops.

http://www.rtcsouthernnevada.com/deuce/

They also have a monorail system now. It doesn't go the length of the Strip, but it's better than the bus.
http://www.lvmonorail.com/

Why take the bus when you can take a taxi? Taxis are free.

We went down to fremont one night it was ok going on the way back there were long lines waiting for the duce that did move quickly but it was missing stops because it was full and was holding due to time table it seemed to take ages. p.s. we didnt get any free taxis

I prefer the monorail system.

I just returned from my weekend in Vegas, last night. The monorail is definately the most comfortable way to move around the strip we always had a seat, you have to plan your trips because there are not as many stops as you'd like and they tend to be back away off the strip. I did find that for a trip from the southe end of the strip to Freemont one should take a taxi there and back. As long as the taxi takes the freeway there and back the service will be much faster. it took over an hour to get from freemont to the Tropicana on Saturday night once we did get on the bus. The bus is fine during the day.
If you haven't been there for awhile I don't recommend taking the monorail all the way to the Sahara as there is so much construction between there and circus circus that you will be walking forever past empty construction sites. The circus circus was definatly not my choice of places to be, overfull and restraunts all closed at 10:00.
Overall a nice weekend though. Loved the tropicana, pool & slots, would definately stay again.