I have not yet had to sell 'props' per say, but I have been faced with selling off other hobby's items before, and I did regret much of it.
*Disclaimer: I may be demented and a good example of everything 'wrong' with society.
My attitude on this has always been "If you sell your prized possessions to simply 'kick the can' down the road, you will always regret it". What I mean by this is looking at what you need the money for: Groceries/Food? Utilities/Cell phone bills? These are things that will not be "solved" by selling your collection. In a month the food will have been eaten, the next bill will be due, you wont have your once prized possessions, and you certainly won't have the money you got for them. All you did was 'kick the can' down the road for a month and now you have nothing.
I'm not saying food and electricity and stuff like that aren't important, they def are! It is just that your material possessions could last forever and that stuff is very very temporary, so it is not a good trade in my book.
Now, if it is something like a mortgage or car payment, those are even bigger and better possessions that will stick around, so it's a 'good trade' in the long run. They are kind of like trading up and having something to show for it. Also "good trades" are things that keep you sane and healthy (doc bills, staying out of jail, etc).
So like I said, I may be warped, but if the sale of your collection is for "temporary" things, you will definitely regret it. Only sell if you are effectively 'trading up'. If you are just kicking the can, I personally would exhaust every other option possible (for me, that includes Romin noodle meals and switching from Jack Daniels to Henry McKinna
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