Just do it.
Get off of the strip and learn something about your surroundings. (Unless you're just going to LV to get wasted, lose a ton of money, and find hookers aplenty then by all means, don't let me get in your way...)
A great way to learn a lot about the old train stop in the middle of the desert. The docent/tour guide we had was a huge advocate of checking out old LV and some of the older, "trailblazer" casinos.
Gift shop is filled with some of the coolest stuff (and it's reasonably priced!)--buy your souvenirs there and you're supporting the acquisition and refurbishment of old neon; AKA what made LV the glowing, pulsing alley of excess it is TODAY.
You're not doing that buying your Bellagio-branded Shot Glass for $10!!