Go back to the 60's and you'll see an even bigger difference in how personal finances were handled. The remarkable thing is, that other than cable TV, internet, and cell phones, there's really few technological break thrus in consumer goods. Products are more reliable yes, but nothing in the scope of "aircars" or other costly futuristic devices have come to pass.
Most "new stuff" is simply repackaged products, that are aggressively marketed as a "must have".
I disagree, I think there have been many technological breakthroughs and improvements in consumer goods that we now take for granted, that simply didn't exist 40 years ago. Some examples come to mind:
-flat screen and widescreen TVs that are larger and high definition
-digital audio systems that are generations improved over the 1960's
-ipods and mp3 players that are digital, as opposed to tapes or cds
-online billpaying and banking
-online everything, including travel sites, shopping, insurance, investing
-computers and laptops that are getting faster and more useful every year
-software (remember using a manual typewriter or doing your taxes by hand?)
-online sharing of information (like this board)
-PDAs that use 3G technology to access email, internet, etc
-wireless networks to access the internet from almost anywhere
-safer cars (think airbags, ABS brakes, side impact bars, rollcages, etc)
-more efficient and reliable cars (remember how dirty the exhaust was?)
-hybrid cars (soon to be all electric cars...google "Chevrolet Volt")
-airplanes that are much more efficient and quieter (remember how loud airplanes were?)
-satellite TV
-GPS navigation and location devices (they can save your life if you are lost in the woods or at sea)
-remote control devices (for TV, garage doors, car alarms, etc)
-microwave ovens
-more energy efficient and safer building and home improvement materials (remember asbestos and lead paint?)
-more diverse energy technologies now available, like solar, wind
-lighter and more efficient and more comfortable clothing (google "lycra")
-lighter and stronger composite materials (remember wooden tennis racquets?)
-digital audio and video (remember VHS tapes and audio cassettes?)
-VOIP internet communications (remember paying $$$ for international calls?)
-greatly reduced or eliminated long distance domestic telephone charges (remember paying for long distance calls by the minute?)
-email
-Google maps, Google docs, or Google anything for that matter
-UPC scanners in retail stores at checkout (remember paper price stickers on every product?)
-self checkout kiosks at some stores
-ATM machines
-credit cards that are accepted almost everywhere, and give you cash back
-realistic video game systems
-3d movies
-massive data storage in miniature size, eg. USB thumb drive
-digital storage of data and statements, eg. PDF files (remember large filing cabinets for old statements?)
-Wikipedia (remember buying Encyclopedias?)
These are just some that come to mind. I'm sure there are others that I left out.