Iron Man's 50th Anniversary? Was it even celebrated?

I literally just remembered that Iron Man's 50th Anniversary was back in March... Was it even remotely celebrated? My friend told me that 'Secret Origin' was intended to serve that purpose but was that it? I would have figured they could have done something more (mainly my fault for not hearing/remembering anything about this :P)...

Everyone too busy was celebrating Superman's 75th birthday :P

That was only last month though, like I said, Iron Man's was back in March...

Well Iron Man 3 was released two months later.

Damn shame though, Marvel should've done something. Like reprinting some old IM trades at cheaper prices.

They had him in various variant covers with different armours but that was about it