State Quarters

For one, be sure they are un-circulated.
The circulated quarters I recently received directly from the mint in packaging like yours will not grade higher than MS65.
Unless you send to ICG, then you'll get 68's all day.

NGC and PCGS I don't think will make the cut above 65.

Now, for the un-circulated from the mint, you may have some around the 68 range. I have some un-circ quarters that come in the 3 pack with the proof. All 3 are in airtites from the mint. They are much better quality, but still have a few hits, but way less than my coins mentioned above.

I would say for the price and hassle, just buy them already graded how you want them from ebay. MS67 is lower than your mentioned, but most any of these quarters graded at ms67 seem to be selling for around $15 each.
MS68 makes the bigger price jump...almost triple the price of the MS67.

If you want to send it in for the experience, I would say pick your top 2 looking coins and send them in, see what they come back at. If it not what your expecting, your not out a large pile of coin

Not now that you said that dave. I think I will leave these out and just go with my other coins I was going to send

My 2015 nebraska double die . And a liberty v nickle . And a 1908 s indian.