My wife and I will be travelling from Termini station (Rome) to Venezia San Lucia (Venice) and the cost for 1st Class 109.00 euros ($141.00) – 2nd Class 80.00 euros ($104.00). I found the costs on the Trenitalia site. I've also heard that train tickets can be bought for a cheaper price, if bought in advance. Is that true? and where do I look for the information. Thanks.