This is nothing new, and quite universal, though its definately good to raise this as a topic to think about.
It spans many pet keeping genres (reptiles and birds in particular), the problem it would seem is usually one of attention span.
Even in dogs, cats, horses (and other more interactive animals) life span can excede the expected. We once had a family cat that survived until the age of 20, a colleague of mine is facing increasingly large bills for his aging herd of horses and ponies etc.
I have a dark, wood filled agauarium at home that houses my Asian bumblebee catfish (bought by mistake labelled as african), He's now 5 years old, 7 inches, and cannot be housed with anything else, he even killed off the malasian trumpets. Hoever, he's MY responsibility and he'll stay until he leaves this mortal coil.
Aquariums have become fashionable, planted, scaped, CO2 injected, special LED lighting, newly discovered fish, odd-balls the list is endless, unless there is room for another aquarium, the value of the orginals, and their inhabitants, will be re-evaluated.
Luckily, thanks to the rise of the internet, there is now a wider than ever community willing to adopt, purchase, rehome etc. such unfortunates, and at least a few petstores too.
Education would seem to be the key, but, with the knowledge that initial acceptance of the facts soon gives way to boredom and apathy.