I find it amazing that every Chinese Android phone I see pop up in my RSS feed has the latest version of Android (4.x) possible but I check out the local Fry's ad and nearly all the budget phones are running 2.2/2.3.
Simply not the case, just from 2013
Samsung Pocket Plus/neo/young
Huawei ascend y/y300/g330
alcatel touch s
lg L3 2
acer/sony ...
All 4.x
Barely anything gets released with 2.3.x and you can always put another rom on those