Thanks for the detailed reply. While I understand your issue (although I don't share it), I don't think more module storage is the solution for your problem.It depends on how you play. I've just bought a second account and on that account I will eventually run a total of five ships - a Sidewinder, a Cobra, a DbX, a Vulture and aT-6. Only the Cobra is likely to see any significant need for module storage of variant engineered loadouts, though the Vulture will probably end up with several different pairs of weapons, and the T-6 will have mining and cargo-hauling loadouts. PowerPlay weapons and modules? Five Prismatic Shields, two each of the rest. I don't need multiple engineered variants because if I abandon a module or weapon build I'm not likely to return to it, and if I do want to I can just engineer it again because it's unlikely to be more than two modules. I'm not going to come anywhere close to the current limits of storage.
But on my main account? I have most of the ships in the game. I have four Pythons, four K IIs, two T-9s, two Anacondas, and two Cutters. Everything is engineered up to the hilt, and if I take an engineered module off one ship I'm going to store it because it might be handy for another build, and I do so much engineering that the thought of having to engineer a module that I could have just taken from storage is appalling. I have literally dozens of storage ships full of PowerPlay modules because I have no way of knowing whether or when I'll need them, and better to have it and not need it....
So on my alt account, meh. But on my main account, yes, I really would like - and reckon I need - more and better organized storage.
Different people play in different ways - in my case, the same person plays in different ways. Don't assume that just because you don't need something, it isn't needed.
If someone asked me for advice (which strangely never happens) I would simply allow people to scrap their unused engineered modules, which would give you a percentage (maybe 75%) of the materials back.