Does net worth matter?

I have been reading other blogs debating the value of "net worth." Does net worth really matter? Is it a deceptive number, or is it just an ego trip? I have read books that tell you to calculate everything you own, including clothes, furniture, etc. and then subtract your debts to determine what your net worth is. They seem to think that this matters. They are missing the point. The point is, "do we have enough money, or are we on track to have enough money, to create the income stream we need to retire?" The personal objects we have, such as an old couch, cannot generate any income so they don't matter. I have never understood why some financial planners insist that people add up the value of all the junk they have. The only things that matter are those that can generate income when you need it. When I calculate net worth, we add up our savings account, checking account, 401(k), 403(b), our Roth IRAs, and the stocks we own, plus what we think we have in home equity(obviously a little tough to gauge now), and subtract out our liabilities, which is our mortgage only. The personal junk we own, such as the beer can collection that I started when I was ten(it was popular then) is irrelevant. The beer cans will never generate any income, so they don't count. I would be curious to see if other people agree. Why the greyhound? Cause she rocks and looks beautiful, that's why.