Consider the fact that more than 50% of college courses are taught by part-time instructors and the extent of the problem becomes obvious. $1100 is piss poor pay for a 3 credit college class at a university, graduate student or not. We pay more at a CC.
There's actually no guarantee that a tenured professor will be a better teacher. There are pretty good incentives at a lot of universities not to be a good teacher because it is not rewarded as well as being a good researcher.
For 100 and 200 level courses, I think the odds are you'll get a better instructor at a CC.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13