I'm not saying spending money on expensive bike is a bad thing.. it's your money and if you can afford it, it's a good idea because if you buy something like Giant, there's no doubt that components are better than Juiced and the bike will give you more joy.
That said though, I am not quite convinced about the long term ownership on ebikes.. it can be done, and it's a nice way to preserve / use something for a long time, but still, I feel ebikes will evolve even more.
When you talk about long term ownership, you're probably talking about 10+ years (I've seen many people who had their bicycles for more than 10 years). However ebikes are different.
Look at ebikes from 10 years ago. Exactly which 10 year old ebikes do you feel worth spending tons of money? Yes, it may have been the state of art back in the day, but they look plain ugly now. 10 year old cars and motorcycles look just fine, but ebikes? They look like they're from stone age.
They had all the wirings (made it look like amateur DIY project) and those old school Bion-X and Crystalyte motors were huge and inefficient.
Some motors were belt driven (looked like alternator for cars) and usually attached to the side / rear end of the frame.
The battery pack was ugly giantic box, overall, if you look at them today, they're aesthetically unpleasant.
And how the heck are you supposed to get parts for those already vintage ebikes? The speed controller, even the display is something you can no longer get.
Yes, the ebikes today look much better, but I feel the technology will improve even more.
In 10 years (2029) , you might be saying those Bosch and Shimano STEPs may look huge and ugly, inefficient and underpowered.. and even Specialized and Trek bikes have this well exposed cheap plastic looking battery pack, with low capacity and low technology called lithium ion.
In 10 years the mid motor (if they still use mid drive?) might be integrated into the frame and barely noticeable. There might be better transmission or gear change system. etc.
I know it's just me, but because I'm a budget conscious buyer, I think I'd rather buy cheap brand like Juiced and replace it a little more often.