Tim,
What I've found is that Alembics are unforgiving. Unforgiving of bad technique, sloppily played lines (regardless of difficulty) and dare I say respect for the instrument. An Alembic, due to its construction and electronics are a very finely refined tool that demands that the user pay attention. You can't just flub a line and not have it be noticed.
In this sense, a Fender or other mass produced instrument is a bit more forgiving, and for many folks that's what they're looking for. I believe this is part of their appeal (for the record, I own several Fenders) in addition to any number of other factors. They're also very comfortable IME, as are their clones (Sadowsky, Lakland, etc., both of which I own, and they're very fine basses indeed).
I don't look at it as not being worthy. An Alembic speaks to you for any number of reasons. You like it. You like to play it. Really, in the end, that's all that matters. Joey is spot on when he say that you won't be sorry, and that they're just a cut above in many aspects aesthetically and technically. This is what drew me to them. Believe me, I'm not sorry after owning 7 of them and playing one in a war zone that I became an Alembic player. In fact, it led me to order the bass of my dreams which you can see over at the Factory to Customer section (Alan's Custom Exploiter).
Bottom line is if you like it, that's all that matters. Play it and enjoy it, and don't worry about feeling worthy. You are.
Alan