The money in reselling is decent but you can usually make more by selling the software itself. I collected a few rare pairs and definitely found that fun. Also highly ego driven and there’s an entire “sneaker Twitter” community where people just want to show off.
I was mainly into it for the software engineering side of things. You end up having to build really interesting/complex software. My infrastructure was basically half a dozen servers with a coordinator that would scrape websites all day long. Also had to learn how to exploit different features of websites to speed things up.
Generally enjoyed it but the community is pretty toxic. Mostly driven by money and ego, no room for collaboration because it’s more profitable to keep things to yourself.
Your software finds margins of x, but surely only so many people can make use of it before it stops working for anyone.
You see similar things in rare craft beer releases.
It’s in everyone’s best interest to keep the total number of bots in circulation relatively low. Helps that genuinely good software is difficult to write and most people doing that work are young/inexperienced - huge advantage to anyone with a strong softeng background.