I don't currently have any LN lot types in town (bandsuck!) but I should probably try building some new venues using the shiny highrise shells from LN to simulate the tall hotel structures on the Strip. I've used the casino lot and am trying to casino/arcade-up other lots (really glad that EA did not give us new lot types for those as I like having options for including other features in my casino lots), plus some SHT venues like Los Suenos which I think fits the theme well. Generally, I find the SHT rabbitholes look good in LP. I've replaced some rabbitholes with SHT versions - city hall, the school, working on a spa/bookstore, kicked out the diner in favor of the coffeehouse which goes well with the new bistro, planning to build the supermarket. I have had to continue on to the other side of the center of town (Sonora Street).

so I'm splitting hairs), though I wish I could make that stretch longer.

I've had mediocre success turning the stretch of road from the interstate to the center of town (Casino Blvd.) into a mini version of the Las Vegas Strip (most of which is actually in Paradise, NV, not Las Vegas, though it is S Las Vegas Blvd. I'm familiar with both so I know better). I've been trying to turn LP into Sim Vegas (I just don't buy the line about LP being Palm Springs and the Salton Sea. I begrudgingly admit that EA did a nice job with the layout of LP, and I do appreciate the generally flat topography that let's me add lots, in addition to the empty lots the world has out of the box. I bought Lucky Palms with the casino, the arcade lot, and a bunch of other stuff. I recently got stupid and went on a buying spree.

Sims 3 casino lot type