If you are looking for a Budget Trip then going for Hostel is the best option. We booked a Dorm bed in 10 bed mixed room which will cost around 20 USD per day. The price may vary according to the occasion in the city. Las vegas is very hot during the summer and very cold during the winter. so, make sure you check the weather report before you plan a trip. Drinking water, food are very expensive and if you are looking for a budget trip then try to get some bread, Jam, Peanut Butter before hand, in a way you can manage your breakfast.
As we know the major attraction of the city is CASINO. There is always a probability factor that lies behind this. I would suggest you can play for fun, but again keeping the budget plan in mind, you need to spend little amount in casinos.