I have been pondering storage solutions for my increasing pile of painted 28mm lead in particular. I took the plunge and ordered
KR multicase foam trays - enticed by their worldwide free postage and low cost relative to GW. I ordered two products - one a set of 8 trays with 25 25mm x 35mm cells - enough for 200 foot, and one set of 8 trays with 20 25mm x 45mm cells, which I plan to use for mounted by removed the foam between two cells - so enough to hold 40 mounted troops.
Total all in was 65USD - about the same price as the GW small figure case which holds 108 figs. The GW foam trays are higher density and cost $25 for 108 figs - roughly $0.23 per cell. The KR products I chose hold 360 figs for $65, or about $0.18 per cell. Roughly 25% cheaper. The lower density foam might offer slightly less sturdy protection, but it is also gentler on your figures. Call it even.
Shipping took about 1 week. Good deal overall I think!