I think that it's important that you evaluate the reasons why you were purchasing a PHEV vs. a conventional gasoline van. You are going to get a wide variety of answers to your concerns, varying between sympathy and outright scorn. Those answers will be colored by the reasons those replying chose this vehicle.
My reasons: I wanted a larger-capacity vehicle (6-7 passengers, more cargo space). But I'm unwilling to purchase a gas guzzler. I am conscious of the environment, global warming exists and is a significant threat, and I wanted to lower my carbon imprint. I have solar panels on my home, which will provide at least some of the energy to charge my vehicle. The EV range on this one is perfect for me, allowing me to basically only use gasoline on longer trips. But I wanted the range-extended hybrid vs. the pure EV for the reason that I'd like to be able to take this car on longer trips.
The van could have no features and I would still buy it. I wish it was AWD (I live in Massachusetts). But there are no dealbreakers on this one. And a secondary but still important concern for me is that I want to buy in early, to help prove to car manufacturers that there is a market for these larger hybrids and plug-in hybrids, since up until now most have been tiny tiny little things that just won't work for me.
If you don't feel this way, if the ability to plug this vehicle in and get 33 or so miles of electric range isn't compelling enough, then I'm a little unsure about why you would choose this one in the first place.
Regarding price: this isn't a $46,000 minivan. It is a $38,500 minivan after tax credits ($36,000 in MA due to local incentives). It should be compared to other $38,500 vehicles, not other $46,000 vehicles. In addition, this vehicle will save me a net savings of $120 per month compared to what I'm spending now in gasoline. Based upon the interest rate on my new vehicle loan, this savings means that the net that I'm spending on this vehicle is $29,000 (subtracting gasoline savings from the car purchase price, over 5 years. If I keep it longer, the effective price of the vehicle is even lower).
Personally, I have never had memory seats. It takes exactly 10 seconds for me to adjust my seat and mirrors when my husband and I switch drivers. Saving 10 seconds in my day, even if it was two or three times per day, would never be a compelling reason for me personally to skip purchasing an otherwise excellent vehicle that will allow me to do my part in lowering vehicle emissions. That is my personal opinion and my personal values. You need to decide where your values are - it's your personal decision.