Buying in bulk is easier when you’re not poor — not just because of the credit constraints or space for storage, but because you won’t be wiped out if you get a bug infestation, your refrigerator goes out, or your pantry gets flooded. You can take that (small) risk of things going bad and save money because if things do go bad, you’re insured.
I think something that both Mr. Money Moustache and Laura Vanderkam miss is the security you get by having a lot of money. It’s that security that allows people to do the things that they suggest. Like, you can technically afford to hire someone to drive your kids to and from school without sacrificing spending when your family income is a certain amount, but it cuts into your savings in a way that it doesn’t if your income is 2x or 3x that amount. That savings may not seem like a big deal in terms of day to day things, but it means a huge amount when it comes to being able to take risks. When you don’t have to worry about what happens if someone loses or leaves a job, and you know your retirement is secure, you can risk more. I’ve definitely seen this when my husband got his new job and we jumped two tax brackets– we’re not spending that much more (when we’re not on sabbatical), but it’s much much easier to just throw money at problems not because we’re now making or we were making stupid choices, but because even though DH’s industry is volatile, we’re at a point where we’re going to be ok in the event of an extended job loss. We would be even more secure if we were making what LV’s family makes.
I’m not explaining this well. But it is a lot easier to spend an extra 2K when your family is bringing in 300K/year (disclaimer: I assume– I wish I had personal knowledge) than when your family is bringing in 100K/year. Even if you can “afford” it on 100K/year.
It’s not stupid to not outsource. (It’s also not stupid to outsource!) It’s all about where your budget constraint hits your utility curves.
Or as sheldon put it: http://www.sheldoncomics.com/archive/090731.html
In terms of Mr. Money Moustache, it’s easier to early retire when you have more than you need rather than the amount you’ll need and it’s easier to take career jumps that will potentially pay off when you’re not worried about saving for the future. Also it is easier to not pay money on insurance, etc. when you have enough money to self-insure.
Even though the two philosophies are exactly the opposite extremes, they both work a lot better when you have a huge amount saved (or a big steady income).
My tenure has allowed my husband to take risks with his profession. Yes, those risks have paid off, but the thing about risks is you don’t know if they’re going to pay off.
Pre-paying the mortgage was more important when we had less money. Having more money and more income means that it is easier to put money in the stock market and not pay off the mortgage because the mortgage won’t put you into catastrophic territory in an emergency (such as a job loss during a recession when the stock market is also falling). You won’t need to short-sell or foreclose if you’re not underwater. (Though if you do go bankrupt, most state laws benefit people who have paid off their homes.)