I was originally planning on buying that pump until I found out that it mounts onto the water bottle mounts (not to the side like others) or zip ties to the frame, which sounds so tacky.

rekmeyata - The way I see it, ideally you won't be using it very often so cost wise it won't bankrupt you. I'd rather get back to riding asap instead of getting an arm workout haha. In any case, I plan on taking the spend cartridges with me and either throw them away later when I see a garage can or recycle them when I get home. Like you said, I can't stand finding spend CO2 on the side of the path because someone was too lazy to throw it away like they should.