What do/did you do for a living?

With the increasingly high priced items people own and are selling, I'm curious about the line of work people do or have done. I thought my $5k integrated was a massive investment, but seeing users searching for $100k speakers or $75k SET amplifiers has me curious about the varying lines of work people do to afford these items. 
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1972 started working in an audio/home appliance store. 1985 left the audio business to work for a maintenance company in Section 8 housing.  1990 I began working for a local school system as an engineer.  I got my degree in Electrical-Mechanical engineering in 1977 while working part time at Audio Store.  In 1995 the School Committee eliminated all the engineer jobs and being in the union, bid on a job as head custodian at the elementary school I went to school in as a child.  I stayed there until my retirement in 2017.

During all that time, went through a lot of audio equipment, some good and some bad.  When I retired, I had 2 very nice systems.   I cashed out all my accumulated sick and vacation time over the course of my 27 years with the school system upon retirement and spent about 30K of it on finalizing my 2 systems.  I am very happily retired with my wife who also retired in 2017, house and cars are paid for and we are living the good life although we are a bit more careful with our money now. Thank God we both have good pensions and Social Security. 
Retired 11 years now, but when working I bought and sold drugs!

I'm a global product manager for a cutting tool company. Been in this business for well over 20 years.

My audio interested started at young age where mom always played guitar, piano, organ and sang in a choir. Started to play guitar myself and eventually ended up owning a recording studio that I sold when I moved to US.

The stereo has evolved over the years; something morphing into a HT, sometimes into a pure 2-ch setup. I'm now fortunate enough that I have a dedicated stereo and a dedicated HT. No idea how much I have spent over the years, and quite frankly, I don't think I really want to know either. :-)
Project Manager building wind and solar power plants.  My love for music started when I was 4 years old.  56 years later still at it. 
i was sarah palin's re'election campaign manager