from a short/medium term buying perspective.. there is still a massive surplus of bank owned homes that havent hit the las vegas mls market according to some local "insiders" i stay in contact with. from what ive heard, the quantity of bank owned homes is likely to increase between now and the end of the year, reaching a peak release rate circa oct-dec '11. take it for what its worth, but if im a buyer looking for an entry point in the vegas home market, id wait for at least another 10-15% haircut off this already depressed market....as long as time isnt your main concern.
edit: rent vs buy perspective.. i would buy into the current market in las vegas rather than rent...and by all means dont follow my path and land yourself in the budget suites for 2-3 months. you would better off sleeping in your car.