I don't know that the analogy perfectly fits Kendo -- after all, your armor is protective and fit is important and while $2000 forged Pings are likely to be harder to use as a beginner than some cheap flexible cavity-backed $300 irons, that's not true for Kendo -- but I'm just trying to make an illustration of why even if you have the money to buy very fancy bogu you might not want to on your first set. Btw, to the OP, I don't think $800 is too fancy for a first set. I just question whether 2mm is the right stitch for you -- ask your sensei what he thinks.