From what I have seen, the pricing is the same. 90% silver quarters have .1808 ozt in each one. 90% silver dimes have .0723 ozt in each one. When you calculate by $1 face value (4 quarters or 10 dimes) it's the same.
Some places may charge more depending on their pricing structures. There shop I went to had lower prices, but didn't let you choose. There's another shop the other direction from my house that has slightly higher prices, but you can choose the coins, so if they have some that are in really good condition, you can get those for the same (slightly higher) price.
From what I have seen, the pricing is the same. 90% silver quarters have .1808 ozt in each one. 90% silver dimes have .0723 ozt in each one. When you calculate by $1 face value (4 quarters or 10 dimes) it's the same.
Some places may charge more depending on their pricing structures. There shop I went to had lower prices, but didn't let you choose. There's another shop the other direction from my house that has slightly higher prices, but you can choose the coins, so if they have some that are in really good condition, you can get those for the same (slightly higher) price.