My tuppence. Well, probably a little more than tuppence.
The first thing I'd say is: don't trust the Keenspace logs too much. They do fluctuate. Eleven extra hits can quite easily be generated by people returning to the site after a thirty-minute time period, finding Keenspace slow and coming back later, or even Keenspace just not working for a lot of that month. At any rate, these are more likely than readers becoming confused and vowing never to return.
As for the question of whether it's worth putting the time in to make a really polished comic strip when the results don't seem to be appreciated... Art (of the type I think you mean) is, by definition, less popular than entertainment. Compare the numbers visiting art galleries yearly with numbers viewing a soap opera daily. Of the two, art is less popular because it's difficult: it raises questions and requires thought. Comic strips have the potential to be a wonderful synthesis of the two - just read Peter Blegvad's Leviathan - but the audience for that, as opposed to passive 'light entertainment', is small. Many just want a laugh, and anything beyond that - even something innocuous like interesting panel layouts - is off-putting. I can't say that fills me with hope and joy, but I fear it's true. Even so, there is a smaller nucleus of people who can and do appreciate comic strips which do something interesting. They are out there, and there are more than forty of them. It's just a question of finding them, or rather, them finding you. And they will eventually (although the speed of it, inevitably, is proportional to how much 'networking' you do).
Lastly, I'd warn (from no real experience, but still) that attempting to be more accessible to a wider group of people is really the kiss of death. Trying to improve your writing and art is quite all right, but diluting your style to popular tastes usually produces insipid results, which are far less satisfying to the creator than lesser popularity would ever be. The Yes analogy (which is somewhat dependent on liking Yes):
Yes in 1970: individual and innovative progressive band with smallish fan-base.
Yes in 1985: rock band with large fan-base and nothing whatever to differentiate them from any other rock band.
Even if you like bland stadium-rock, you wouldn't listen to Yes of the latter period: you could get better examples of it elsewhere. But you can't get the Yes of 1970 anywhere else, which is probably why they still have a following. I reckon a small, appreciative fan-base is probably a better thing than a broad one coming back just to get yet more of what they like.