I've been looking at various websites lately trying to find the bike parts I want for a build. Because this was a project I started last year but put aside for months, I noticed some parts don't seem to be readily available. Like, has anyone noticed that certain brake levers aren't available on some sites? Am I imagining this or are Shimano parts getting a little more scarce? Would this be intentional and why would they be doing this if it is occurring?