I'm addicted to my three-monitor setup for my gaming PC, so even if I got an iMac, I'd still be hooking up a minimum of 1 additional displays to it.
If you're concerned about researching displays and about the cabling, I can happily recommend things for you; I have go-to recommendations for what I use as my personal displays and what I recommend to doctors as their dictation and medical record display to go with their Mac. And adding one of these to a refurb iMac might be a really nice option for you too!
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