Perhaps it should be said like this:
The necks from Rondo Music are going to have the most quality you can get for $40.
You've got to remember, though, that these necks may or may not have a finish, fret work, and/or final sanding -- something that Mighty Mite necks, which will cost about $30 more, have. So by eliminating the those steps, the necks at Rondo can be sold at such a small price. Not to mention, those necks are being mass produced somewhere in China, so there's no telling what kind of quality control -- wood quality, glue quality, craftsmanship, etc. -- if any, is employed.
Between Rondo and Mighty Mite, I prefer the Rondo necks because I can modify them without much prep work or guilt. I'd rather ruin a $40 neck than a $100+ one. Plus, I'm not a fan of the Fender headstock shape. HOWEVER, if you want a good neck, that's gone through quality controls, approved by Fender, made to Fender's specs, and is ready to go on your bass, I'd go with Mighty Mite.
iamlowsound said:
But you can't go too wrong for $40.
lowsound
Oh, without a doubt!