Eh, I sold all my New York Comic Con tickets for a profit this month since I was working there. Tickets were in incredibly high demand considering the fact that average joes who watch sports/meat heads were going so I took advantage when tickets when on sale and bought up a bunch. I didn't feel ashamed at all so no regrets since the people I sold them to were happy to pay my asking prices.
The money went to buying up some exclusive toys/gadgets which I plan on flipping forward to finance a couple of personal goals. In the end of day, it's people who are willing to fuel the market so someone is willing to pay the money.
I think there's no real black and white story to the scalping market. I mean yeah, it might be considered unethical but there's hundreds of reasons why one might want to sell something at a profit. Maybe they need to off crippling debt, a new car, invest in something they wanted to do, or maybe they really are greedy. In the end of the day, it's all shades of grey. Supply and demand is such that people are willing to pay good money for something that is scarce. It's one of the dangerous sides to capitalism/materialism but the wheels of capitalism keep on turning.