Fairly expensive for a middle-of-road garden sprayer. It would probably last for a long time, depending on what you put in it.
I use these sprayers at work and around the house. I've found that the one gallon size is best for me as the contents weigh less. I sometimes am carrying one up a ladder. If I am doing a bigger spray job around my single acre residential lot, I'll mix up a few gallons of spray in a bucket and supply the sprayer with that.
Unless you buy a high-dollar model with Viton seals (like your Solo), bleach and caustic soaps eat them up in short order. If I need a new one, I shop sales at the Big Box stores.