User blog comment:LoveWaffle/Ranking 2013's Superhero Movies/@comment-4651179-20140115001123/@comment-4651179-20140118065324

Like I said, he blew up his suits as a signal he gave up his obsession with them, not the suits themselves. And he removed the arc reactor as another signal he evolved and managed to open his view to new horizons. He can still build more suits and pilot them without the arc reactor, as each suit has its own independient arc reactor.