What "premium" accessories are you referring? Having just purchased this camera (body only), it come with a plug in battery charger, strap, brief manual, some cords and that's about it. By the way, it's a great little crop sensor camera, I highly recommend.
No, the accessories is lower quality lens. It is plastic feel and look OK. I bought the body only because I have a premium lenses. Just buy premium lens like 18-200 VRII and body only that is all you should need. Good luck!
The box contains a battery and charger. You will need to separately purchase a memory card, a lens sky filter (if desired), an extra battery, an external microphone accessory (if desired), an external WiFi adapter to connect with an iOS device, and an external remote controller for taking pictures.