Just a reminder to everyone, always buy the second version of any new product category, even from Apple. The first duo will look primitive in a few refresh cycles. It does look really cool though!
But I'd say it's the exception. In general it's better to wait for later generation.
That was solved over time anyway as macOS improved and more developers ported their apps over
what products _did_ have big leaps from v1 to v2?
MacBook Air -> MacBook Air 2: unibody aluminum construction replaced plastic, ssd option introduced.
iPad -> iPad 2: cut thickness and weight by 30 %. A4 -> A5 doubled performance. Dramatically better screen. Introduced the magnetic case ecosystem.
iBook G3 -> G3 dual usb: from colorful clamshell/toilet seat design to sleek laptop. 30 % lighter, half the volume, twice as durable, 2-3x the performance.
And… Apple I -> Apple II? Apple I was a motherboard, the II was a complete computer.