Illinois Tax Lien Sales: Who bids on tax liens at 0%? (R.A.M.S.)

[Daniel Legut]

At the Tax sales where R.A.M.S. is used in Illinois for the sale of tax liens, who bids 0%? Why do they do it? Is it mostly banks that do it to protect their assets? I'm interested to hear from anyone who bids 0% or anyone who has attended Illinois Tax Lien sales in counties that get low average winning bids. These counties include: Dupage, Grundy, Lake, Mchenry, Mclean, Sangamon, or Will. These counties stick out as especially low average bids. Why is that the case? Are tax liens here more desirable?