If you were ever at all interested in custom work, you might also use use this an an opportunity to try some custom painting, decaling or even weathering. I started doing this a few years back and I think I like this part of the hobby the best. I have many custom one of a kind pieces. Maybe worthless on the resale market but priceless to me.
If you have a piece you no longer care about, make it into something you might care a lot about.
Here was an Amtrak 44 tonner and a bay window caboose. I repainted the 44 toner and kitbashed the caboose into a unique transfer caboose.
This is my most favorite piece. I took a Grand Trunk SW-9 and made an SMS SW-1200. I even kitbashed and painted the figures.