Most quality courses in Maine that I'm aware of are run on successful and reasonable pay-to-play models. The only one I'm fully familiar with is
Enman Riverside / Caribou, ME
1. private
2. ergo, not a State Park
3/4. $5 for the day. There is/was also a membership option for a full season
5. exclusively a dg course
6. standard fee. there is a staffed club house/pro shop that collects greens fees*
7. has been pay-to-play since installed in 2001
8. contact info:
David Enman (the work # is actually for the clubhouse)
* the club house also provides many other services, including:
- sells discs & most other equipment, snacks, etc.
- disc rental: large selection, $1/day
- provides scorecards
- keeps track of and posts your most recent 20 rounds, and calculates handicaps for all "pilots" (anyone with at least 5 scorecards turned in)
- runs weekly doubles, monthly glow rounds, several local tournaments (usually not PDGA-sanctioned because of low turnout due to the course being so isolated geographically)
As you may guess, I fully support the way this private course is run; keeping costs low and providing solid course maintenance and many other valuable services.
a few other private Maine courses which have great websites with pricing and contact info:
LaVallee Links / Augusta, ME - this is a new 3-course destination which seems comparable to Hornings
Enman Field (the Beauty and the Beast) / Brunswick, ME - 2 courses with a clubhouse setup identical to Enman riverside above
Dragan Field / Auburn, ME - another course in the Enman family