Let me add some comments to this subject as well though I do definitely not have as much experience as you guys do.
First of all, CHEAP and CHEAP isn't mandatorily the same. Cheap can mean poor components and poor workmanship, but cheap can also mean reliable though not newest technology components, acceptable workmanship, but price calculation is, as we say, "stitched with a hot needle".
In German language we have 2 different words for cheap. The bad cheap is BILLIG, the good cheap is PREISWERT.
If I look i.E. onto my eleglide, I have to say, the frame is made of aluminium, which isn't as durable as steel, but it doesn't rust. Furthemore I am someone who looks after his equipment as far as I can, on his own.
If someone needs to visit a workshop even for a flat tire, I would tell him: "Don't touch this bicycle. Go to next dealership and buy a mid-motor cycle in the 3500€ + region or look out for a model of 2 years ago which you might be able to grab for 2000. You will not get happy with my choice"
And talking about leaving the bicycle in the rain. Even bikes without motor shouldn't be left in the rain, but who leaves his electrically assisted bicycle in the rain for longer than half a day is to me, excuse my wording, an Idiot. The question you should ask those guys is:"Would you leave your Iphone in the rain as well?"
For sure they won't though this is also electrical equipment made in China.
Let me comment the fork stuff. Yes my fork is made of steel and I can not guarantee that the rubber sealings are going to last long, but who cares? If it's really broken though I do care I get myself a new one for 68€
Or I do invest a bit more and will have no trouble for the rest of my life.
In general I also heard comments besides the life expectation of it that the fork is technically shite.
Yes, compared to high-end forks with newest technology this might be the truth. But I don't compare with those.
I do compare with the first front-suspension bicycle I have bought for my son in 1999 and compared to this my fork is excellent.
But, as I already said, if you are going to buy an Ebike the first question you should ask yourself is: What do I want to do with that vehicle?
If the answer is going to be:"I want to cross the alps next summer and my planned mileage is about 1000 miles a month", forget the bikes below 1000 Pound. If you want to commute, let's say, 5 miles each distance, not too heavy slopes and besides this just replace the car for small grocery shoppings or do a 20 miles weekend tour with your kids or your wife (or both) and if you have a hands-on mentality there is no need to spend a fortune.
For me personally one important point in making the decision was also:
With one exception my most expensive car so far was 2000€ (Peugeot 206 CC, 16 yrs old)and (also with one exception) my most expensive motorcycle was 1200€ (BMW K100, 32 yrs old). Bearing that in mind a 3000€ Ebike was an absolute No-Go. Hey, we are talking about a bicycle with a motor, not more.
Take care