This post really got me thinking too. My shed is packed full of ' junk' I have collected, purchased and built over the years. Some of which are not very valuable in monetary terms but are extremely rare with a few one off examples that are custom made. I have tried to catalogue my steam engines on my website but that's just a fraction of the hobby stuff. My wife does not really bother with my models and knows nothing of their value. I have 2 sons , the older one has zero interest but the youngest is often in the shed with me building and experimenting so maybe he will keep them.