I ditched my laptop for a W10 2-in-1 back in September. One of the best choices I made all year. Got a great closeout price on an Acer Switch Alpha 12. I'll never go back to the good enough laptop spec again. Buying $300 - $400 laptops on sale is a waste of time in today's tech market.
When W10 was still prepping to launch, a Bing Rewards deal got me a $300 Dell with Core i3, 4GB RAM, 1TB HDD, a 720p 15.6" touchscreen display and 3 USB ports only one of which was 3.0.
Fast forward to this past September and I got a major performance boost for $574 with the Acer: Core i5, 8GB RAM, 256GB SSD, a 2k touchscreen with pen support and a USB A 3.0 + a Type C port. The detachable keyboard is an almost 1:1 Surface 4 clone and a great typing experience.
Rounded it out with some accessories. I already had a Microsoft Arc Touch Mouse. Add a quality microSD card, a $20 fingerprint reader that sits in the 3.0 port and a $40 hub that plugs into the Type C port which gives me: 2x 3.0 ports, a Type C port, HDMI and both standard and micro sized SD slots. I also splurged and picked up a Type C connectable Samsung T3 SSD in 250GB.
The cold boot + log in time is under 10 seconds with the fingerprint reader. Multitasking and daily chores are accomplished with aplomb. Inking is a good addition to the arsenal. It travels well and was a champ on my 2 weeks in Portugal as I kept everything organized and curated/edited my huge allotment of daily pictures. I don't play a whole lot of games, but the few I've dabbled with on the 12" 2k touchscreen have been very pleasurable. I stream lots of content off of Amazon Prime, Sling TV and other sources and the screen size is not really holding me back one bit. I probably stream more now than I have in the past.
Point is you can get a lot of power and flexibility... If you opt for just a straight Windows 10 Tablet, you might find yourself adding a keyboard and mouse anyway. You might want to think about a 2-in-1 in the Surface/Surface clone range.