It _might_ be. But that depends on your expected installation costs, total tech buys per year, and average failure rate of the tech you buy.

There's likely a pretty small sweet spot where you're making money. If you're regularly buying lots of poorly-made tech, definitely worth it.

If you buy one big ticket item every other year or so, which I'm guessing is about normal, you may be in a different situation. Most big ticket items (tvs, fridges, W/D, etc) are incredibly reliable - you're likely better off paying for installation and saving the $200/yr for the lifetime of these products to stay in warranty. All of this stuff can be expected on average to last for over a decade.