Seems like a good price for 16GB model.
20% off from Microsoft eBay, then another 15% off from the coupon.
As usual, do not leave Surface devices plugged in when they hit full charge. Set the device to Hibernate instead of Sleep, due to the issues with Windows Modern Standby.
I'm confused about the statement around leaving your Surface plugged in. I have had a couple Surface Laptops over the last 5 years. Often plugged in continuously after I go to bed. Never used hibernation. I know many others who do the same. What's the issue?