There are two phases to the demise of the Dick Smith chain.
The first was when it went from being a personal passion-driven enterprise to a subsidiary of a generic retail corporation. The philosophy of generic retailers is completely incompatible with the specialty, big inventory, comprehensive stocking of an electronic components retail business. The corporate people in charge were driven by monthly performance indicators and thought it would be smart to cut every low-turnover line from their stock. They had no idea they were killing the only reason people entered the store in the first place - with confidence they could find something there they could not find elsewhere. So began the death spiral.
The second phase was perhaps even more disgraceful. The corporate owners sold it to a venture capital firm who pulled off a stunt that should have been illegal - stripping the stock and assets even further, then somehow pulling off a float promotion that valued the shell at five times what they had paid for it. There was no way the floated company could trade up to that book value, and the stock tanked almost immediately. There was virtually no equity to back their debt-funded working capital. "Caveat emptor" is all very well, but a lot of the lost capital would have been funds siphoned from innocent investors through intermediate vehicles and shonky funds managers, ready to believe anything with the famous Dick Smith name on it. Speculators playing out of their depth.
I hope Jaycar can stay out of the hands of carpet-baggers. Apart from a pretty good range of component stock on hand, they employ people who, on the whole, know something about the items a customer will be looking for (quite a few seem to be electronics students or hobbyists themselves).
Rick