I have a Polish passport so the visa fee of €35 seems more appealing than $160 + mandatory ILS fee of €25. Of course the $190 visa would give me multiple entrance in US passport, but it is not that great of a deal for me - I was pondering the second entrance for the mere reason of flying out anyway, so I might as well skip Russia's second entrance. But I'll still think about this.

Belarussian visa for US citizens is actually a lot less now even for US citizens - transit visa costs $25 for single entry and $35 for double entry. This is because

"Effective January 13, 2015 new reduced visa fees apply for U.S. citizens. The visa fees are no longer calculated on the basis of reciprocity and now are determined by the Tax Code of the Republic of Belarus"