I have a 1 BTC Casascius coin and want some advice.
What would the the average price be for this coin in BTC?
Is it worth putting it into a crypto exchange and earn interest on that, or should I keep it closed?
In the collectibles board/forum, people do an auction starting 1 btc (since its 1 btc cas), with an increment you decide. Since its limited, every collector there really want that piece, even the bitcoin price reached $100k, there are still collectors who will buy for 1 btc for that, trust me What would the the average price be for this coin in BTC?
Is it worth putting it into a crypto exchange and earn interest on that, or should I keep it closed?
The time you transfer your funds to an exchange, that means that you fully trust the exchange, considering such amount and your personal info will be asked. You should consider also that you will no longer fully control of that funds. Regardless the exchange is trusted like binance, there are still users got an issue and locked their account together with their funds.