Dealers will be very loathe to sell you a base model manual accord, even if the manufacturer technically offers one for sale. They often straight up refuse, or tell you that if you special order it you can have it in five months at MSRP.
I've gotten the impression that the salesfolk were under some kind of pressure to sell what's on the lot. Nothing quantitative and no direct evidence, just a vibe I picked up last time I was nosing about a dealership. Is it just my imagination?
Absolutely. They'll sell you a car built to order, but the good incentives/discounts are for cars on a lot. The longer it sits, the more money it eats (taxes, upkeep, and obviously opportunity cost.)
You can sometimes find cars that are a year or even two years old, brand new, on a lot. Like a 2015 model today. You can get serious discounts on one, often cheaper than a used one with miles.
Nice cars sold at nice-car-dealerships are much more likely to be built to spec. You buy a $85k porsche, you can get it optioned to your specification with not a single raised eyebrow. You buy a $22k accord, you take what's on the lot or you call a bunch of dealers before one will actually want to work with you and make things easy. Good news is that if you buy a $22k accord, there aren't a lot of options that matter, so you can probably find exactly what you want on the lot...
Unless it's the most base model they have, which often isn't on any lot, because nobody want to earn $200 selling a $22k accord when they can earn $800 selling a $26k accord. (Numbers mildly made up, but you get it.) Not to mention that buyers of the most base model are far less likely to go for the other addons from which dealers make money.