Streethawk, getting back on topic, you are right that the majority of ebikes do cost a lot more than the sum of their parts, however given the way the market currently is that's just the way it has to be. There's a difference between overcharging and charging a lot.
You've just got to accept that an Ezee Torq at £1500 comes with Zoom forks, a Wisper at £1600 comes with RST Vita forks, and a Trek FX+ doesn't even have front suspension.
There just isn't the volume of sales to keep a business going (office rental, wages, etc) without charging a lot for these bikes while keeping the parts costs down. However, keeping the business going is what some customers need so it makes sense for them to pay extra safe in the knowledge that they will be able to get reliable after sales support, and there is no-one who can doubt the quality of after sales support there is in this industry. I've only been reading this forum for a few years but I see time and time again companies going above and beyond to make sure their customers are happy. When my frame snapped due to user error, Hamant at PoweredBicycles brought me back a replacement free of charge on his next trip to his manufacturers in China, and this is not uncommon (this level of support throughout the industry, not my frame snapping!!!).
Another point is that I'm finding that you don't really need top spec. stuff on a 36V electric bike that is at most going to encounter potholes and speed bumps. I think that when you get to Deore level gears, Fox level shocks, Mavic level wheels and Avid hydraulic level brakes you are really leaving the target market for ebikes, although on price alone you might not think it! I, like you, was very dubious about the quality of the Alien bike (I'd never even seen a non-sealed bottom bracket before in my life!) but I have to say that the zoom forks are still doing their job of soaking up the potholes, the Tourney gears are still working and since I upgraded to Jagwire brake blocks, the braking has remained excellent. My Alien GS1 has definitely won me over by sheer persistence! I think the power of the motor puts less stress on the gears and other parts of the bike resulting in less of a need for higher speced parts.
On a side note, I've really enjoyed reading up on and deciding on upgrades for my electric bike (with some help from yourself on the saddle front! Thanks for that by the way) - RockShox forks, RaceFace Deus XC seatpost, Mavic CrossRide wheels, etc. It does however highlight the difference between costs and sales prices for these stock electric bikes though!