Raspberry Pi 500+ boasts a high-quality mechanical keyboard with removable keycaps and individually addressable RGB LEDs, an internal M.2 socket pre-fitted with a 256GB Raspberry Pi SSD, and 16GB of RAM.
Define "ultimate"
Pis are neat, but they're not particularly great at anything, and they in fact suck at most things. They're toys except maybe for some very specific use cases (for which anyone reading this doesn't fall under).
You can find something more powerful and useful for $200. Just buy a used laptop, and you even get a battery, screen, and touchpad (neither of which come with the pi)