228. The OG Sony Walkman
Manufacturer: Sony
Original price: $ 200 *
Current value: $ 951 *
The Walkman was a technological revolution that made Sony a lot of money. When the Walkman was launched in 1979, the portable audio player cost US$ 200 (about R$ 800 in today's money). Since then, all editions combined have sold around 385 million units and the Walkman paved the way for other portable audio players.
Technological nostalgia is profitable in the collecting industry. Walkmans from the 1970s can cost as much as US$ 1,000 today, despite being mass-produced. Even though Walkmans are basically obsolete now, that doesn't mean you can't sell them on eBay to make money.
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