i worked at compusa in the late 90's and even then i was surprised that they were able to stay open. one of my managers told me on day 1 of my job that CUSA was the "wild wild west" of electronics retail; meaning wheeling and dealing, pricedrops and addons to get sales, freebies to get warranty sales, "creative" inventory management, staffing rollercoasters, etc.. were all par for the course there. so while i feel bad for those about to loose their jobs, it should not be a surprise to anyone, especially with the round of closings recently.
when i buy consumer electronics, i will research what i want on the internet, learn about the options of various products, then go into a bigbox store and look at one in person, and then go order it online where i will get it cheaper even with shipping, and not have to deal with saying "no" to an extended warranty 20 times before i can leave. when i am approached by an employee of such a bigbox store, i tell them i am all set. if they insist, i tell them i am going to buy product X online and if they can match it i would buy from them instead. they are never able to, so i get it online. one thing i do not do is waste thier time pretending to buy only to walk out.
i am not the only one who does that, which is why a place with expensive, low margin items like CUSA are hard to keep in business. thats also the reason why their cables and such are INSANELY overpriced.