In my experience, speakers can last for many years where I can use the same pair of speakers for over 10 years, and it still works and sounds nice, so I think it can be more worth it to buy more expensive speakers. Most expensive speakers have removable audio and power cables, so you can easily replace the cables yourself if your old cables got damaged by an animal like a dog which chewed broken your cable.
Used expensive audio equipment like some nicer speakers may also be worth more money because high quality speakers may no longer be made because most new speakers in the future maybe cheaply made, and sound not as good compared to more expensive audio equipment from the past.
But, TVs are sometimes less reliable than speakers where they can break after 5 years of regular use even if the TV cost more. I think the TV is more likely to suffer from overheating problems, and is more likely to break because of power surges which damage the internal circuit board.
TVs are more likely to become outdated like how older TVs without HD resolution and HDMI are less useful when game consoles like the PS3 and Xbox One uses HDMI cables, and games and Blu-Ray are recorded in HD. Now 720P and 1080P TVs and monitors are becoming outdated as 4K is becoming more popular.
Smart TV's hardware, operating system, and apps will also become outdated where security problems are no longer being fixed where a hacker maybe able to know what you are using your TV for, spy on your internet history, listen to your mic, and watch you if the smart TV has a webcam.
Used expensive audio equipment like some nicer speakers may also be worth more money because high quality speakers may no longer be made because most new speakers in the future maybe cheaply made, and sound not as good compared to more expensive audio equipment from the past.
But, TVs are sometimes less reliable than speakers where they can break after 5 years of regular use even if the TV cost more. I think the TV is more likely to suffer from overheating problems, and is more likely to break because of power surges which damage the internal circuit board.
TVs are more likely to become outdated like how older TVs without HD resolution and HDMI are less useful when game consoles like the PS3 and Xbox One uses HDMI cables, and games and Blu-Ray are recorded in HD. Now 720P and 1080P TVs and monitors are becoming outdated as 4K is becoming more popular.
Smart TV's hardware, operating system, and apps will also become outdated where security problems are no longer being fixed where a hacker maybe able to know what you are using your TV for, spy on your internet history, listen to your mic, and watch you if the smart TV has a webcam.