The men in my life are always the hardest people to buy for. I have to think long and hard about what they're into, as you can't just find a pretty trinket. Here's what I'd buy, from etsy, for my dad, who loves photography, good healthy food, beating me at board games, swimming, surfing, table tennis and keeping fit, movies (of all kinds, he isn't picky), computers and just hanging out with his family. Oh, and he looks great in purple.
1902 men's strength building book "Physical Culture Simplified" by Anthony Barker at Daily Memorandium