Moog has been owned by Federal Mogul since 1998, so the recent changes (if there have been any major recent changes) are not because it was "bought out" any time in recent years.
An noted, Moog still has a lot of good stuff, but it appears not all Moog parts are equal.
The R-series parts previously mentioned are a newer low-priced series of control arms.
http://www.moogproblemsolver.com/suspension/r-series-control-arms#.U7oV7PldVI0
Quote:
The MOOG® R-Series™ (RK) line of control arms is the right choice for the value-driven repair. These control arms feature MOOG engineering-validated construction and design, OE fit and form, and pre-installed OE style bushings and ball joints where applicable.
For other parts, there also is some variability. For example, look at the ball joints for my Nissan.
The Moog catalog shows the upper ball joint being part of the Problem Solver line. It's a real Moog part with "Moog" on the boot and on the ball joint itself.
http://www.fme-cat.com/overlays/part-det...ONTIER&vin=
But the lower ball joint for the same truck doesn't have the "Problem Solver" designation, doesn't say "Moog" on the part itself and appears to just be a generic part. Likely, this part is sourced by Moog from another manufacturer. It could be good, but it could be bad, too.
http://www.fme-cat.com/overlays/part-det...ONTIER&vin=
I recently used some Deeza parts for a Ford Escort and was quite impressed with the quality. Not made in the USA, though.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2925508