Where your quantity sits against the 1/5/10/25/50/100/250/500/1000/2500/5000/10000 break points (just under a break is the expensive place to be)
Construction type, temporary corrugate vs semi-permanent vs permanent metal, wood, or acrylic
Structural design and engineering, including any prototyping
Quantity and run length
Check before signing
Prototype or tooling charged per order rather than once
A heavier or permanent material quoted where temporary was specified
Freight under-estimated for a bulky low-weight item on dimensional weight
Assembly billed separately when shelf-ready was implied
Negotiation levers
Match the construction type to the campaign length rather than over-building
Reuse an existing structural design across campaigns
Design to ship flat to cut freight
About shelf wobbler 3.75"x5" rectangular pricing
Priced per unit with quantity breaks. Vendors quote steps at 1 / 5 / 10 / 25 / 50 / 100 / 250 / 500 / 1000 / 2500 / 5000 / 10000 units, and the per-unit rate drops at each break.
Why is one display quote five times another?
Almost always construction type. Temporary corrugate is a fraction of a permanent metal or wood fixture. Confirm both vendors are quoting the same build before comparing.
Why is freight so high on a lightweight display?
Displays are bulky, so carriers bill on dimensional weight, not actual weight. Designing the unit to ship flat or nested lowers it.