nice!!! i wish to experience this!!!
how much u spend to get over there? 
hahha..u always ask me the same question...yes it is great experience...its my 3rd trip to venice actually...to get there from where i stay is 4 hours trains ride...so i go in the morning and return at night....didnt spend much..about 40euros for 2 way trains (sometimes can get cheaper - there are many kinds of trains) - and i never spend much...just roam around....