Not all men are alike....just a thought.
If you have an inkling into his interests that's a start. I mean some guys I know love video games, others would not enjoy that.
I'm not above asking adults for ideas of what they want. You can also ask someone who knows them better than you do - like a best friend or spouse?
Beyond that, I find, in this day and age, most adults basically just go out and get the items they really need/want - at least according to their means. In our family, we've really dismissed the idea of buying each other more trinkets - so to speak.
When we give gifts, we tend to do more experience oriented gifts - like maybe restaurant gift certificates, a store like
Best Buy (DVD's) is good, movies theater gift certificates, or a down payment on a summer vacation.
Then again, I'm not above wrapping socks as a gift (for someone I know).
Who doesn't need socks? Who doesn't love warm feet it the winter?
I nearly always give a gift receipt these days if I give a bought gift, that's always good insurance.
If that still isn't enough....then I try to think healthy. Something geared towards making that person more healthy. A good generic gift along those lines is a crate of real, fresh Florida citrus fruit. (also in your price range) If they are involved in any exercise clubs - you could cover a month of member ship or somethign like that. If they play golf or almost any other sport - they probably need a steady supply of new golf balls, gloves, or shoes. (at least a contribution towards a new pair of shoes) There are also some GREAT books out there on health, healthy foods, etc.
If that STILL isn't enough...well then....maybe throw in a few lottery scratch tickets. I wouldn't throw away more than a few $ on them - but that's kind of a fun, open-ended gift - so long as they can get TO the state where you bought them to claim any winnings.