mikey7777 is right about march madness being more of a factor than Spring break in Las Vegas.
Did you think about staying on Fremont Street in March? It tends to have less of a young crown looking for trendy bars (Spring Breakers) and
Sports bars and sports books on Fremont are smaller and have less going on than the strip clubs will (March Madness)
I have never seen a line a block line on Fremont Street personally and if I did I would walk right by. I think with a little investigating on line, you should be fine
weggie