In defense of the devils, web-exclusive is not a sign of greed (for the most part) for them. It's more for lowering risks.
In Japan, the web exclusive items are generally of the same price as the MSRP as the regular counterparts. Although we know that the devils got a bigger share of the profit in this case, I suppose the traditional retail channel should yield more overall for "hotcake items". Otherwise the retail channel should have died by now.
My point is, web exclusive is not designated to make you pay more. These days you have dozens of new toys from Bandai alone every month, it becomes very difficult to pile up stocks for toys. It is difficult for small toy shops to manage, and when they can't survive, it is turn bad business to the large toy companies. And also, obviously for certain niche items, it's better to make to orders to avoid overproduction.
As someone not living in Japan, I suffer from web exclusivity too. However, I also admit this is a solution to the mentioned problems.
Exception: when certain items are considerably overpriced, or should have been included in the first place. e.g. The DX Folder set (overpriced); the upcoming missiles for armored parts (should have been included); the Fire valk fists and landing gears (both), etc. On the other hand, I can accept the speakers set.
The SDF and Regult resin kit is another story. They are resin kits, not toys....