Ganguro I take it you live there? I would say that if you haven't been there since 95 then you would barely recognize parts of the main strip. For one thing, You don't have to cross the streets anymore, it's all walkways above the traffic. I don't think The Bellagio, Venetian, (new) Aladdin or Mandalay Bay were there in 95. You could check out the wax museum or take a gondola ride at the Venetian, check out the sharks at mandalay bay, or go to the Ghost bar at the palms. Don't miss the free dancing water show in front of the Bellagio. Very romantic with the right person.
Also, I hear that Treasure Island has a new show out front starting at the end of October. Something about sirens...
<img src="http://www.treasureisland.com/images/entertainment/sirens_pre_pop.jpg">
Looking to going there in October myself.