I've owned many pumps over the years. One of the best I ever had was the old Silca Impero frame pump with Campy head. It got lost in a move. I then bought a Zefal HP when they first came out. Equally good pump for a lot less money but alas it also got lost in a move.

I made a huge mistake and went to a high-end bike shop in Scottsdale when I used to live there. I picked up a Silca Pocket Impero. Uh oh....

The sales guy said, "Yeah, that was what I thought to. And, yeah it works as well as it looks and feels". "Does it pump to 100 lbs?", I asked. "Yep" was the reply, and he added, faster than you think too.

This is by far the best portable pump I have ever owned, period. It fits in a jersey pocket but I got a cheap flashlight holster at Home Depot to carry it in and I clip it to my baggy bike shorts.

Yes, it's expensive, but it works, really, really well and will last for years...and you can get spare parts for it just like the other Silca pumps. It will get a mountain bike to good pressure more quickly also, compared to other portable pumps I own.

It can also be used as a Billy Club.....

The way I look at it is this: I can buy cheaper pumps every 2 or 3 years and after a few years I will have spent more than if I got a really good pump to begin with...that will probably last 20 years or more. My Silca floor pump is going on 25 years old and isn't slowing down at all.