The biggest single limiting factor for most folks is the ability to run a modern browser, and to access all web sites as needed.
Once you can no longer upgrade your browsers....because they require a newer OS (which you cannot run), the machine's days are numbered, unless you have a dedicated use that does not require full web access.
A photo editing machine would be a good example of something you do indefinitely, no updates needed. Any other dedicated software will continue to chug away.
Just don't expect to use a secure connection (like online banking) on an old browser on an old OS. Even if you can, it would be unwise because of security concerns.
After 10 years, it's time for a new one.
You will LIKE the changes and improvements.
My "take this advice and you will be very happy" tips:
- Get the 27" -- you will NEVER regret paying more for the larger display
- Get an SSD inside. You have to order these through Apple's online store (or buy an Apple refurb that has one). It will run much faster and better for longer. (but you already know about "longevity" !!)
- Get 8gb of RAM. You can add more yourself (on the 27") later if you need to. But try 8gb first.
I am in the same boat with a 2009 27" iMac as well. I had the hard drive replaced a few years back and I upgraded the ram to 8gb and it still works fine. I only use it to spread out docs when I am editing a book so I can see them all at once (which I can't do on a MacBook). Not sure if I should sell it for a few bucks on eBay while I can and then get a monitor or just keep it.
Curious as to what you did with your old devices. I have a 2011 MacBook Air that I keep on hand, but rarely use. My 10.5” IPad Pro is my workhorse now, so it’s nice having that “real computer” as a safety net, but considering a new one at some point. Did you trade in or sell on your own or donate?I am a strong proponent of ditching old hardware when I find myself no longer regularly benefiting from their availability.
Also, I am a strong adherent to minimizing system administration load.
Today, I have one desktop computer (Mac mini 2018) and one notebook (MacBook Air 2019). There are no other Macs in the house. There is one cheapo Wintel PC in the house.
That's enough for me.
If you want to keep your old gear around, that's entirely your prerogative but I have better things to do with my time.
In the past twelve months I have ditched: Mac mini 2010, MacBook Air 2013, MacBook 2017. I am glad they are all out of my life. I don't go looking around for a reason to keep old computers. If the usage case isn't obvious (home theater PC for the Mac mini 2010), then it goes bye-bye.
I've got the above referenced iMac. Works well, no issues, but you can't upgrade the OS any more. I've never had a Mac that wasn't upgradable and wondering if there are any drawbacks to keeping this computer or if it's time to buy a new one.
Thank you.