My advice from experience: Pick three or four items you need to comparison shop. Enter one at a time into Google and price it at four or five of the standard suppliers; i.e., Favorite Spot, Model Train Stuff, Hobbylinc etc. No one place has all the items and no one place has all the best prices. I have found that, overall, Model Train Stuff has, by far, the best prices and the most complete inventory. I have NO financial interest in MTS whatsoever; am just an avid N and HO scaler. I have also found that, many times, an item listed on eBay can be had cheaper and brand new from one of the suppliers.