last i looked the oem or the ones i would want to use for replacement were like 150.00.also the junkyard is 2 ball joints and a tie rod - replace the whole assembly.
after market is aprox 50.00 - plus you have to remove that rusted bearing retainer ring out and press the bearing in and out. lot more work.
Also, the word is that the after markets are not worth the effort because of high failure rate.