You still had to have incurred more expenses than the $2-300 you claim with all that supposed driving back and forth from Orlando to Orlando. Gas alone! Not to mention parking on South Beach (at the Pep Rally, not free) road tolls, your son's souvenir, food/drink. I'm sure there was more than that. Need I go on?
You begged others for money while spending at least several hundred on your own recreation and entertainment. It doesn't matter if you funded a lavish trip or only spent a few hundred. Asking for donations was a shady move, though I'm not surprised it's lost on you.