A couple of times in my career I've had to upgrade my business work warddrobe beyond the normal IT dockers and polo shirt level.
I took an exec position overseas and had to wear nice suits every day. I spent $3,000 for that. Suits, shirts, shoes, belts, etc. Basically, enough to last for a whole year.
Of course, I was making an extra $35,000 in salary for that business investment... Plus free transportation and lodging there... Plus no income tax on the first $90,000 or so in salary for that year... Plus there wasn't a whole lot to buy because it was one of the poorest countries in the world so I really saved on impulse shopping... No internet impulse shopping because you had to go to the post office, wait in line and ask if there was a package for you every day until it showed up...
(Yes, the irony of having to dress that well in one of the poorest countries in the world isn't lost on me.)
We paid off everything we owed except for the house. We made made one house payment per paycheck, so we were making 3 to 4 payments a month. We saved enough cash to replace our soon-to-die car with a nice used car.
If I could get another gig like that for a few years AND have my family with me the whole time I would do so in a heartbeat.
I actually liked the place very much. Great people, both locals and westerners.