Economical and on the strip is the Imperial Palace, one step up is Ballys, next step up is Harrah's, your bike will be safe at all three. Price is =/= quality. The Venetian is much better, as is the Mandalay Bay but the price reflects the quality. If I am going to play poker till the early hours of the morning I stay at the IP, weeknights can be as low as $35.00 for a non member free if you have a Harrah's card, on the other hand if I am schmoozing with the wife I stay at The Hotel, they have the best rooms on the strip in my opinion and no casino so it is a nice place to hang out without listening to the slot machines.
Vegas in general takes care of the tourists, both the Police and the hotels, they know where their money comes from.