Wait ... What?
You mean you can make money in SL? *blinks*
If I could make enough money to support my SL expenses (I've got mainland, so premium-plus-tier), I would be elated. Right now, though, I don't expect that to happen for a while.
Being that my first in-world venture was a coffee house, I had to laugh at number eight. Sure, you could sell a drinkable latte, but it's an eternally bottomless cup. In fact, it wasn't until my fifth or sixth residential build that I bothered to install plumbing - and that was only because I remembered that showering with a friend can be fun. I still have never had a kitchen, and see no use in a toilet. *deftly sidestepping the pervs*
The only in-world jobs I have at the moment are DJ and dancer. Both jobs are at different clubs, and both are owned by people I respect greatly. I do them because I enjoy them and they're fun, not because I expect a big paycheck. Both jobs are entirely based on tips, so I really have to work and work hard. But the work is fun, and I know most of the regulars at both places and I have a blast, even if the tip jar winds up nearly empty at the end of the day. There have been a couple nights where I've danced for two hours straight, interacting with the customers extensively (you can't just jump on a pole and go afk - it is a job) and still walked away with L$25. It wasn't because I didn't put in 110% or that my performance wasn't appreciated - there are just some nights where everyone's broke and needs something to do. You can't let it be about the money in a SL-based service job. People come to have fun, and they may not be able to tip you anything, but they're no less important than the person who can (and sometimes does) drop L$500 in your jar.
I have made a little money in speculative real estate, and I've bid (and lost out) on a few of the whole-sim auctions. Even with those, the actual profit realized is somewhat small.
I know some people who are actually able to make SL their full-time job. Those people, however, are geniuses at scripting.
As for me, I've put a little bit of money into my SL experience. I don't regret it at all, though.
Oh, and I'm a pretty good tipper. ;)

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