We sure do have collectors syndrome holding more kits than we would ever build, it just feels good to buy stuff, when it turns up in the post or bring it home from the model shop, this brings about a squirt of endorphins in the brain causing a sense of elation! . . . and then it goes into the stash never to be seen again until a thread like this comes along.
Probably most of us have way too many modelling tools and stuff than we really need for that 'just in case' scenario.
I use the 'I'm saving and preparing for my retirement' when I won't need to buy anything further, missus Miko isn't as convinced as I had hoped!
Miko (the thrill is in acquisition not the possession, or it's the journey rather than the destination)