Once went to Venice for a week ... in the Autumn of 2002.
But ... ... since I availed myself of the much cheaper facilities offered by a "Youth" Hostel, I've no idea of hotel costs there ... !

Having said that - and in an allusion to the celebrated Elizabethan Bard's drama supposedly set in that Italian Canal City - just beware the "con" 'Merchants of Venice' (notably the coffee purveyors in and around beautiful St Mark's Square) throughout the course of your visit and you'll enjoy.