I don't think owning a food processor and some other kitchen machines is so very unmustachian.
As we are the people who do home cooking almost every day, we need some machines to help us doing this efficiently. I guess a kitchen machine still costs a lot less than a regular visit to a restaurant. But of course we don't need an endless list of machines and not the most exclusive ones either.
I use my food processor 4-5 times per week. Recent uses: shred cabbage for coleslaw (1 minute and done), shred potatoes and chop onions for latkes (2 minutes shredding to make latkes for 8 people), large quantity of hummus, roughly chopping veggies for soup (then made in the crockpot), and I used it to cut the dough for 3 pies last night.
Let's be fair: all of these (minus the hummus) could have been done by hand. But when you're scrambling to get food on the table within 20 Minutes of getting home from work WITHOUT take-out or ready-made foods, sometimes a bit of mechanical help is needed.
I have a full-on fancy-pants food processor - Kitchen Aid, full price is about 250$ online right now. But I got it as a gift 12 years ago and have used it 4 times/week minimum in that entire time... i think he cost per use is fine, considering what it lets us avoid (... take-out).
Similarly, the crockpot was bought on sale 7-8 years ago (I think around 30-40$CAD?) I make a LOT of homemade broth, soups (how do you feed a crowd Saturday lunch coming in from sports when you've been out of the house since 8am yourself? A large batch of minestrone started at 8am, that's how), we cook a lot of dried beans in it (no need to be next to the stove, can go do work outside and come back a few hours later and nothing will have scorched or spilled over half the kitchen), etc. It's pretty much done (half the settings won't work and the rubber gasket is cracked and discontinued so we can't replace it), but given the use, we're either getting another one or getting an Instant Pot (searing IN THE SAME POT? Yes please.)
The one appliance I regret buying is. cuisinant blender. It won't blend for shit. Like, it won't blend THAWED mango into a smoothie, never mind having a motor strong enough to handle peanut butter/almond butter/etc. I HATE appliances that don't work right. We've saved up: when the Vitamix goes on sale at the Costco kiosk, we're getting one.
But yknow what we NEVER spend money on? Like, ever? Take-out and convenience meals. Restaurants are a 2-3 times/year thing for us, and then only when we're seeing friends in the city for 2 days and the restaurant is a socializing event. Total cost of the appliances I listed: about 400$CAD. How many people bust that in take-out and restaurants in 2 months?