Our marina charges $x for a 30' slip and $y for a 40' slip. Doesn't matter how big the boat is. Electicity is metered. There is a rate sheet in the office, and pretty much everything is covered. The pumput is $5, unless you're a sliphoder, in which case it's free - period. Liveaboards pay a fixed fee, and a liveaboard is defind ans anyone who meets x criteria. My point is, the marina is professionally run, with published price schedules, and lots of happy tenants.
All marinas in New Zealand work this way. Fixed price dependant on the size of the berth, not the boat. So if you use a 13m berth for a 9m boat you pay for 13m. And all the rates are published. All electrics and water are included. Pump out is free to all boats, even non resident. The marina I was last in had all facilities (very nice ablutions, laundry, lounge, TV room, Internet, parking for 2 cars per berth, 24h security) and they were all included. Live-aboard was an additional nominal fee, fixed irrespective of berth size.
Another thing in NZ is that no external maintenance was permitted, zero tolerance. I'm talking sanding, painting, etc. not replacing halyards or stuff like that. So you'll never have noise or foreign matter on your boat.
So I feel for you guys who have to negotiate every element and then still get stung. That's just not right.
My only beef with marinas in NZ is the price they charge for fuel. It is about 30% higher than the local fuel station. They claim it's because it's a marine location, delivery fees are higher, more maintenance, etc. but the same tanker comes to the gas station up the road, pumps 20k litres there then comes down to the marina and pumps 20k litres there. Extra charge? Yeah right. The reason they charge more is real simple, it's a captive market.