Peanut in panel 4 = priceless. I also found it amusing that i didn't really care why Sabrina wasn't dripping with drool either, probably because it's a comic and you usually get things like that go away on the next page for some reason.
As far as the concern goes for the dreams go, i doubt it can be a running gag forever. considering at the moment it's just them three, i doubt the gag will happen for long. There maybe a exception for a possible prank from the spookmaster in the future in my opinion, but that's just speculation.
My only real comment about the arc was that i enjoyed it, but felt the whole Peanut/Sabrina situation was dragged on too long when we got to this point.
. It didn't feel like it back then, but Panel 4 just made me think of Peanut doing something like this
in one comic strip while at heaven's truck stop XD