None of the bicentennial dollar coins struck for circulation are rare or even scarce and most dealers don't buy them. Only proof and uncirculated coins sold from the Mint have more than face value.
If you're using the term "silver dollar" to refer to $1 coins minted since 1971, they're not silver and only a few of them are rare. Regular circulating $1 coins minted since 1971 are generally only...
None of the Bicentennial coins (1776-1976) regardless of denomination or mintmark struck for general circulation have any silver or are worth more than face value. Only proof and uncirculated...