Don't agree with the above, or at least it needs to be put into more context.With Ebikes the cheapest model with the motor and suspension that you want (front and rear, front only or none) is generally the best value.
Within a good manufacturers range, maybe - in as much as you're not going to get a Cube, or Specialized or Trek etc that has totally rubbish components.
However there are load of other bikes out there (motorized or otherwise) that have some truly dreadful parts on them, that frankly are not fit for purpose. You'll end up spending more on replacing defective and broken parts as time goes on.
And that isn't taking into account the very good points that Ocsid made above. There is a pleasure in riding a well designed, higher end bike, that you often just don't get with the lower end ones.
There seem to be many people however that either are incapable of discerning these differences (in which case - lucky them, they can be happy riding and owning any old crap), or they are in denial, because they don't want to admit to themselves that a more expensive bike can give a better ride experience and the parts can last longer etc etc.
That said, there is a law of diminishing returns, so often something in the mid range of decent is often the best compromise and gives the best 'value' !