I remember Memmaker.  The thrist for "I'm going to make this machine better."  If it ain't broke, tweak it.
Now I don't tweak.  Bought my iMac last year, and still very happy with it.  Somewhere between age for and 50 (I'll be 51 in Feb), things changed.  The "future" became "now."  I see the end of the tunnel.  Not with any foreboding or sadness, but a drive to be "useful" to those around me: work, friends, civic activities.
For some reason "feathering my own nest" never fully caught on with me.  I left a high paying gig 4 years ago, for a low paying simple minded job in a grocery store.  It's fun to go to work.  See lots of people.  See if I can help keep the employees from setting each others hair on fire.
"What matters" has changed drastically.  For the better too 
 
  As far as technology goes, I ditched my cell phone 4 years ago.  Huzzah!  I like receiving and sending real letters rather than email.  Haven't watched TV in 4 years except for 1.5 weeks of the Olympics and the Holy Father's funeral Mass.  I don't like my cordless phone that I've had for years.  The battery is going.  Of course I could replace it easily.  I want a phone like the phones I grew up with.  I guess "dials" are out of the question.  The kind you can easily cradle against your shoulder.  Oh, lost the headset 4 years ago too.