Actually, RadioShack killed themselves, in 1988/89.
Tandy/RadioShack was a leader in computers, especially in the small business market, starting about 1983. They were way out in front of many others. Their fist major offering (aside from toy-ish Commodore 64 competitors) was a Unix (xenix) based console. In 1983, had a whopping 12 gig hdd, ran 8" floppys, and could support 2 dumb terminals. Lots of SMB's put them in, because you do do that for about 25-50k, vs 150k for the lowest IBM offerings. I probably put in 50+ systems from '83 to '86-87. Made big money for the '80s. Got a 15% kickback on hardware, more on the accounting software, and did a lot of database work. Worked 60-80 hours, and turned away as much.
Anyway, RadioShack came out with this nice annual catalog. Every January or whenever, a new catalog came out. And they got it in their heads that pricing in the catalog was THE price for the year. No reductions, no sales, no rebates. And computer prices fell like a rock starting in mid-80's. They'd come out with a system....iirc, I paid $4k ish for a full-blown 386 in '88. It was still $4k in December. When all the new-then competitors had dropped $500 or more in that year. Next January, a new catalog comes out, with prices for that year...competitive at first, then overpriced as other's dropped their prices. Within about 3 years of that, RadioShack had suicided their computer business. Downhill and hanging on ever since.
Still got a running 4000LX sitting in the shop. ftp://ftp.oldskool.org/pub/tvdog/tandy1000/documents/4klxrel.txt