If you are going to look for Amish/mennonite cabinet makers in PA, they are all going to be custom cabinetry as far as I know. We went to many different places (we're very close to Lancaster) and didn't encounter any who had off-the-rack cabinets (for lack of a better word). That said,

Home Improvement Outlet "
615 E. Walnut street Lebanon Pa.
717-273-8167

has what seemed to be reasonably affordable semi-custom cabinetry when we went in there looking for floors, but I didn't really look into it at all because we'd already found our cabinet maker and I have no idea who makes it or if it is the same brands as you'd find everywhere else.

Most of the non-custom places we went to did just sell the same stuff you'd get anywhere else (Kratmaid, Candlelight, Medallion, etc.) so there wouldn't probably be a lot of use in you going to Lancaster, etc. just to look at that stuff.

Our custom cabinet maker was less expensive than Medallion or Candlelight. Our cabinet maker is Dutch Wood Kitchens
I don't know what your budget is, but base price starts at $418/linear foot for cabinets (more if they have to go very far from PA to install). That's for all wood, dovetail construction, etc. Adding additional features (fancy hood, glass doors, etc. etc.) was pretty affordable as well.

When we were looking, we also went to Oxford Cabinet Company on the recommendation of people here:
Try
Oxford Cabinet Shop
120 Quarry Road
Oxford, PA 19363
Jacob K. Fisher
Call Monday, Wednesday or Friday between 8-8:30 AM
(717) 529-0949
We got a quote from them that was around $2000 more than Dutch Wood (we have a large kitchen w/ lots of add-ons)

Here is a thread on the same question: cabinet cost

I second beagles..if you don't want custom, there's no reason to make a trip out to Amish country. If you're saying you're not interested in custom because of price, you will probably be surprised. My custom cabinet maker cost the exact same as Thomasville from HD, but I had custom sizes, glass doors, ROTS, hardware AND installation included in the custom price.
My guys aren't in Amish Country, they are not far off of Route 78 near Easton, PA - Blue Mountain Woodworking in Bath, PA.

Hello beaglesdoitbetter1. I was wondering if you had contact information for Dutch Wood Kitchens?