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The words Cheap and Weekend usually don t go together here in Vegas. Prices rise to normal prices and very few discounts are offered for Friday and Saturday nights. A room alone is going to coast at the minimum a hundred a night. Figure about $200 per person per night. Note that if you take a third person with you that will cost you extra for the room.
You can try for this one : http://www.hotels2stay.net/las-vegas-hot�� they provide cheap hotels bookings , me and my friend always go for this one . hope it benefits you and your friends and u can enjoy your trip and have a nice and cheap weekend ahead .
for a weekend, assuming you re not gambling, you can get by with $5-600 per person.
300 a day for weekend booze is very expensive and food is too