I prefer to take a more, shall we say, generous approach.
I think there is a re-awakening happening among the young set (30 and below) regarding "classic men's attire", suits, sports coats, vests, bow ties, etc. but because there is a large generational gap in many cases, these young gents have nobody to guide them, and so they are left groping about in the sartorial outer darkness knowing somehow that vests, suits, etc are stylish, yet not knowing those subtle rules that make the style work, such as having your waistband disappear beneath the end of your vest. What they need is someone to show them the way, such as the esteemed gentlemen of the Fedora Lounge.
Sometimes, gentlemen, style must be arrived at through painful and tiny baby steps.
Well the thing is, getting buttons sewn on your pants takes time, getting proper length pants and such take time, and to really getthe vintage stuff takes time and patience that very few have. Most men aren't going to scrutinize too much, they may want something stylish but they aren't going to wrack their brains over it. So i find if i tell someone who just got a 3 pc suit he's supposed to wear suspenders with it i always get a funny look. For most, why bother if one can just slap on a belt? Its a matter of availability, i have yet to come across pants in any clothing store that come with suspender buttons already on.. there should be by right!