I think the equation is, inexpensive, lightweight, durable – pick any two. Can you share any anecdotes, which lead to you opinion?
I destroyed my first Blackburn Mammoth 2 (Lesson learned don’t oil your pump with dry chain lube.). Blackburn replaced it for free under their lifetime warranty. One of the weaknesses I see with all my 2 stage pumps is there are a lot of parts and complications. Each with its own potential points of failure out on the tour. That is one of reason I often take two pumps on tour. Certainly the Longneck at $40.00 is not cheap, but it is complicated.

I put the quality of my Blackburn 2 stage pumps on par with the Topeak Morph series except they are not 2 stage and quite inadequate for my needs. I do understand others love them and sometimes take offense at anyone casting anything but 5 star praise. I do own a Mountain Morph, which lives in my mother in law’s garage in Hawaii where it is used mostly to pump up volleyballs and other beach equipment. It actually works decently with my low volume/low pressure 20” tires on my folding bike. I also own a Topeak Harpoon 2 stage pump. It is battle ship ready, but only puts out enough volume for very high pressure tires.

I have a classic 30+ year old Blackburn frame pump and next to my two stage pumps it is the most versatile and useful for my touring style. It is certainly the most durable pump I have ever owned. I don’t think anyone make one that good anymore. Certainly the new Blackburn frame pump is only a shadow of its predecessor.