A man here. We've been married for 24 years now. So....here's my take on things.
Sex is not a reward. Sex is not earned. Sex is not a punishment.
Psychologically, men do think about sex far more often than women. Studies have shown (no evidence, just self-reported answers) that many times a day does a man think about sex. Oh I bet there are women that would say otherwise or challenge that notion.
Now, my answer about the anniversary question would be to celebrate together. If YOU like football and enjoy going, then tickets would be good. What is it that BOTH of you enjoy doing together. The anniversary is about the two of you, not just him. This should be more about the celebration of the two of you and a reminder of your commitment to each other.
One year is the first milestone, but each and every day, week, month and year HAS to be a commitment. Yes, it IS important to work at it.
And then you reach number 24 or more.
Oh and yes, the sex on the anniversary is STILL always good, enjoyable...and any other time as well.