Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
There might be a market for those old Macs. There were some games that I was able to play on my 2006 MacBook but couldn't play on my 2010 MBP. Tropico 4 and some Lego games come to mind. I forget the specifics on why they weren't playable.

But yeah, after I realized older electronics break down, I get rid of them if I don't need them. Batteries start expanding, my iMac G4's screen started delaminating. Not worth it.

I’m still rocking a Mac SE as a dedicated writing machine, a 5.5 gen iPod (used daily), and a B&W G3 running. Each of them have been upgraded, yes, but to extend their usability. Old tech has a place (not for everyone, I know, but it does).
 
Does this mean I can still use my iPhone 5 on a cell network?
The iPhone 5 (and 5s) supports LTE but not VoLTE. So maybe, but not fully. Voice calls wouldn’t work.

The 4s and older wouldn’t work at all.

The 6 supports VoLTE, so it would be the oldest still fully functioning iPhone.
 
That’s a shame. I always keep all my old tech but beginning to wonder why as it just becomes bricked by software in time…

For example is have some old iMacs from 2008 that still work and run fine but won’t connect to iTunes and most websites don’t even work anymore.

I doubt these will ever be worth anything so might as well just sell before it gets to this point
There is a growing market among collectors for vintage Apple stuff. Take your devices to a local vintage computer fair. One is happening in Schaumburg, IL in September.
 
I remember I wanted one but ended up on Samsung Galaxy S3 because I was on Sprint.
I got a first gen iPod Touch (well, first and a half: they did a mid-cycle refresh with 32 GB of storage and that's the one I got). My first actual iPhone was a 4S as that was the first one available from my provider. It was possible to "hack" a 3G/3GS but from memory iOS updates could break it.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.