[quote=flu]Is there any issue with coins tarnishing if they aren’t kept sealed in a box? Will that affect resale value significantly?[/quote]
I have some krugerrands I bought 12-13 years ago, dated from the 1970’s. They look really good, not perfect mint-state, and the were sent to me in the vinyl sleeves I speak of. I don’t think they’ve changed at all (but that’s just me eyeballing vs my 13 year old memories) and the sleeves aren’t sealed. That’s the thing about gold that the ‘bugs’ harp about: chemically, it’s almost indestructible. My eagles and maples in unsealed sleeves are similarly fine after years.
I’d be more worried about silver, but the silver I have looks great after many years,no change that I can see.
Yeah, anecdotally I think the resale value will be affected if your bullion gets damaged or tarnished, but buy prices shouldn’t sink much lower than spot.