system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is ticket scalping, for the most part, illegal but reselling things on ebay for profit is perfectly fine?

For example: People have been snatching up the new Nintendo 3DS XL and trying to mark them up on ebay for $100+ profit. How is this okay but reselling my tickets to Van Halen is supposedly "wrong"
And when scalping tickets is permitted, its usually limited to selling for the ticket price or less, with strong restrictions on profiting off of them.
gpt
In some cases, you aren't buying a "ticket", you are leasing a seat.

In the agreement you sign when you buy the ticket, in some cases, may say you can't resell the tickets publicly and either must turn them over to the ticket seller or can only sell it on a specific website.