Mini pumps don't suck, they are a tool. In the right circumstances they are life savers. If you want to use one to top your tires up to 140psi before each ride, well pick another tool.

There are quite a few 2 in 1 mini pump and CO2 inflators around now. I've got a Genuine Innovations one, its good. CO2 works, pump gets me to about 70-80psi which is fine to limp home in a pinch. Lezyne do one, Topeak etc

Any LBS that tells you to rely solely on CO2 .... run far far away from, it's just junk advice. Having to call your wife, 80k from home begging her to drive a couple of hours to pick you up cause you're on your second or third flat of the day and have no more CO2 refills left. Well you can do your own math, of course your Mrs may be far more understanding than mine.