[kennend3]

There are a number of serious flaws with what you wrote. The first is what others commented on.. you confuse "hobby" with "for profit".

Next is this :

> DIY furniture is not cheap compared with mass-produced even without considering time,

Do you honestly believe that "mass-produced" furniture is anywhere near the same quality as DIY?

Ikea - Where you can buy a bookshelf which will not be able to hold the weight of books.

DiY - Where you use dado's and plywood and end up with bookshelf's which can easily hold a few hundred pounds.