Also, it must be remembered that information that many of us obtain is not free.
You can only go so far with BMD, Family Search, etc. I have spent many £s on specialist documents, booklets, certificates, travelling to libraries and archives, etc, - my ancestors travelled widely - USA, Canada,various South American countries, South Africa, Kenya, India, Malaysia, Australia, New Zealand, Wales, Scotland, England, Eire, N/Ireland, and a few affines from Continental Europe!
Gadget
PS - if you just want a tree, that's one thing, but to really develop a family story is far more intensive and expensive.