There are lots of very desirable clad quarters all the way down to nice attractive VG. Most of the regular dates have to have something special to make them desirable though like being well struck, PL, clean, well centered, Gemmy, or a date that wasn't saved. Something like an '82-P is desirable even in AU or XF if it's very well made. A '72-D would have to be solid Gem to be of note.
Of course, I collect these from circulation and am pretty proud even of these nice XF's and lower end Uncs. I started the circulation set in '97 so a few of the later ones are Gems.
Clads are very overlooked and people are going to be surprised by even the prices of XF coins if demand materializes. Simply stated almost every single eagle reverse quarter is scarcer in Unc than a 1950-D nickel! It's the high demand for the nickel that causes the higher price. Some of these are scarcer in nice attractive BU+ than an '09-S VDB cent!!
People call this "conditionally rare" but even the legitimately rare clad goes for a song.
Time don't fly, it bounds and leaps.