[trebleshot]

I tend to open most things I buy, but there are some that I will keep MISB/MOSC (usually involving duplicates or minor remolds/redecos). And for the toys that have resealable packaging (i.e. convention toys), I will hang on to all that and keep them that way.

Even with the ones I keep sealed, I never do it with the intention of selling it later. Collecting is my hobby and my collection is purely for my own enjoyment.

My advice to any collector is never buy them for the sole purpose of their once and future monetary worth. Toys today aren't like antiques. The packages will fade, collect dust and yellow. The toys will discolor, degrade, and disintegrate eventually.

And the secondary market is a fluid and fickle beast. Sure, there are some toys that only get more valuable the older they get. But those are rare and with good reason. Chances are, any toy you buy at retail won't get you very much on the secondary market unless you catch the eye of a wealthy, but ignorant, toy buyer.