I agree 100%. I think marketing is the most important thing with almost any business. My rationale is I'm not going to get better at it while writing mindless code. The best way to get better at it is to market products, right?
Kick ass on the code for a couple years (you might find that you enjoy it if you can get out of Java Hell and start doing functional programing) but, from the sounds of it, you'd be happier as a PM. PMs get a bad reputation because 80% (or more) of them are idiots, but the other ~20% can be invaluable for their ability to market technical work, internally and externally.