Nyberg's ACE at 10th & Sycamore is the kind of hardware store where someone actually knows what aisle the pipe fittings are in — and will walk you there. That's not nothing.
Stock runs deep here: hand tools, power tools, building materials, paint supplies, plumbing, electrical, and enough housewares and home goods to cover the gap between "fixing something" and "furnishing something." They serve the south side of Sioux Falls and the kind of customers who'd rather solve a problem this afternoon than wait on a shipping estimate.
Locals pick this location because it moves faster than a big-box and stocks more specifically than a convenience stop. You can source materials, grab hardware, and compare options without reconfiguring your whole Saturday. That combination — depth of inventory plus human help — is what keeps people coming back to the same corner.