I believe Maine's archery success rate is something close to Colorado's, maybe a bit lower. Haven't checked the numbers lately, though. Not that many trad hunters here, mostly compound territory.
Maine is a big state and heavily forested but we don't have the forgiving climate that many other states do and so game populations are generally much smaller...thus a viable reason for comparatively lower harvest opportunities and lower harvests (if you get ONE good shot at ANY deer here, in any given season, you've done well). Lack of hunting access, especially in the state's southern half where land posting is quite popular, is becoming a serious threat. We have a good IF&W department (good workers but not well-supported at the legislative level) that tends to side with landowners when it comes to hunting access priorities...which means as a hunter you're basically on your own to find good places (public or private) to hunt. Lack of access more so than number of animals is likely the #1 reason why the future of 'good' hunting in Maine is in trouble, IMO. That, and lots of anti-hunter gibberish that seems to grow by the month.