That's 600 pages in the lifetime of the printer, which is less than a single cartridge.
The real mistake people make is they don't realise they'll have to buy a new cartridge every 6 months because the old one has dried out.
Now the printer before that basically never printed. I used it to scan my (postal) mail. One day it decided to upgrade its firmware, then refused to scan without ink. What a waste.
It's also not always easy to compare. Maybe I can see that a HP cartridge holds more ink than the Epson one - but do they use ink at the same rate? How much do they use for cleaning the nozzles when you're not printing? Will I be able to get unofficial cartridges, and will they affect print quality?
It's getting easier to compare, because they're getting on the subscription bandwagon, based on pages per month. But the smallest plan I see is HP's 15 pages/month, which is probably at least 3x what I actually print.