I'm going to make a suggestion based on many posts here over the years, and on my own experience in the marketing world. This suggestion is meant to be both a help to the hobbyist, and to the Lionel bottom line.
I would recommend that Lionel create an interactive inventory list in the cloud. Each customer would be able to keep an accurate, up-to-date inventory of their possessions that is pass-worded. The site would have to feature photo posting through a Flicker or Shutterfly-type site.
This would finally enable the Lionel customer to keep an accurate list for insurance purposes in the cloud. Not only that, but they'd be able to access their inventory through their smart-phones while at shows and meets, giving them an instant "yeah I need that" feedback. Consumers would be able to create a "Want" list, that would be visible to Lionel, giving them a heads-up on actual demand for a product. Lionel could provide updated values based on the most recent TM Guides.
The up-side for Lionel is this: they would get an accurate gauge of what folks own, what they're buying, and what they're wanting. Lionel could then target ads to the consumers site based on the kinds of product that consumer enjoys. Lionel could also sell ads like OGR does above.
The site for the customer would be free, but the marketing potential for Lionel would be priceless.
Jon