Quoted from doublestack:

Pinball machines aren’t investments. They are money making devises for the public that have become collectible.
Stocks, bonds, and real estate are investments.
A game at home is a toy. You may or may not make your purchase cost back, the real enjoyment is getting to play your toy. I have no regrets, I love it.

Quoted from Deez:

This plus the pros are made out of superior materials since they're professional grade and designed to stand up to the abuse on route. LEs are more prone to breakage since they're home owner grade.

Quoted from snaroff:

Truth...super stupid. Pins aren't investments, pins aren't investments, pin aren't investments, blah/blah/blah, YET, we all know that if pins depreciated like pool tables, our hobby wouldn't be thriving. Sure, people would still own some games, but the people with over 10 games (like me) wouldn't be collecting so many if their games didn't hold their value fairly well. If people think otherwise, they are fooling themselves. Demand is sky high, but when that subsides we will likely go back to the good ole days where the license and game actually dictate a games value. Bond is a top shelf license and currently an unfinished work under development.

Wow, even more stupid...