Tourists- unless you're planning on getting sure friendly with Sin City, this post might only semi interest you. Why not read it anyway.
Vegas has recently had a culture shift and boom. When Zappos CEO Tony Hsieh moved headquarters to Vegas- I had no idea he would be impacting the style I would be wearing and he new friends I would be meeting. His non-profit arm, the Downtown Project (oh so aptly named) has revamped not only East Fremont Street, but provided the growth for all of downtown (that's old Vegas, north of the Strip). It's a culture awakening in Vegas- and it's awesome. Like a cold beer on a hot day. Going to the strip and paying $30 a drink for tiny plastic cups of sky and oj are reserved for just the special times. Like when everyone comes to Vegas. The other times, Downtown is where it's at. Friendlier bartenders, interesting people to meet, great art to look at, cheaper and more genuine handcrafted cocktails to be had.
With this culture growth has come a style change. It's taken a tangent from Vegas club style altogether while still keeping some of the extravagance and decadence of the strip.
Of course, anything goes. You can still find half naked girls in silver panties and neon tops (I've been one of them) after work and college coeds mingling. The style, like the drink prices, is much more relaxed. There are much more tattoos and piercings, yet the same amount of platinum hair dye and red lipstick. I'm really digging the way Downtown is carving its own way, yet people still want to keep that Sin style. I wouldn't want it any other way.