Nor are any available with 2G DRAM, which is a big part of the N4's great interactive performance.

In fact, if you limit the search on that site to 1G phones with Jellybean and 4.6-5" displays, you get a lot of units with prices significantly higher than the new price of the N4. And the ones that are cheaper seem pretty universally inferior (e.g. 480x800 screen, minimal internal flash, etc...)