I, too, seem to be a motive power nut. At this point, I have no layout on which to run my collection, and many other pieces of rolling stock, too. Maybe the next year will be the year that I actually get something started. I plan to use DCC from the start (and all my locos are already DCC-ready), so that may increase the expenditures somewhat. On the other hand, if I still procrastinate and don't get anything started, expenditures might actually decrease (although I doubt it). Time will tell.