If you assume they changed ALL the fluids and the oil filter, you're looking at about $90 for fluids and an oil filter at retail. It doesn't take an hour to change the fluids, but give them the benefit of the doubt and throw in another $80-$100 for the labor. In other words, you get maybe $200 worth of actual value. The rest of the BS on the checklist they use to justify all the excess charges is rarely actually performed by most dealerships, other than perhaps checking the belt tension which is a five or ten minute deal at most.
If you think about it, most of the other crap on the checklist shouldn't be the customer's responsibility anyway. If the fasteners are loose, that's a factory defect and should be a warranty expense. If the electrical switches and accessories don't work, that is also a factory defect and the customer shouldn't have to pay to inspect and correct that either. If a brand new latch or hinge needs lubrication already, I'd suggest Harley needs to join the modern world and install parts that don't need a shot of lube every couple weeks. In other words, most of what is on that checklist is pure, unadulterated, super premium BS. Btw, what is the required service interval for your other vehicles? I don't know of any mainstream vehicle that requires anything prior to the first normal oil change at 5000 or 7500 miles. There is nothing about a Harley that should make it any different. Trust me, the fluids don't wear out in the first thousand miles. What that 1000 mile first service really is is another "extra dealer profit" item, just like "dealer prep" and "doc fees".
If you have the ability and the inclination, you would be better served doing your own maintenance. At least if you do it yourself you will know for sure what exactly was and wasn't done. If you aren't the do-it-yourself type, find a good independent mechanic to handle your maintenance. Most will charge much less than a Harley dealership. And don't let a dealership con you into believing you have to have them do your maintenance to maintain your warranty coverage. You most definitely do not have to pay them to do your maintenance, and that is spelled out in Federal law in the USA.
Jerry