Are you going to complain about the tax credits that you got that you can't get now?
I struggle with the tax credit issue as it wasn't really Tesla's money/margin to begin with. It does soften the blow, but a lot of us bought cars in a hurry to get in before the tax credits. In fact, I remember that December 31st push, I swear Tesla's marketing was like, "Get one now, they'll never be cheaper." At least that was the feeling from the tweets and marketing push. Then on Jan 2. they basically lower the price to abosrb the tax credits. The issue that has, is it lower the value of the cars already purchased by that much. Subsequent price drops have continued to do so and have now reached the point of lunacy (great for new buyers, but definitely a sour taste for those 2018 buyers).
Many cars reduce price via rebates to stimulate sales, but rarely does the best selling car and a car so desirable see huge slashes. When I made the impulse decision to purchase the Model 3 Performance late last year, it was done based on Tesla having a reputation for holding value fairly well, the car being highly desirable and the tax credits. Come to find out, this is definitely the worst car I've ever bought in terms of resale value, and I've bought some real doozies before. On the contrary, I've bought many high-end S/RS Audis and M BMWs and have seen them more or less hold their value and BMW outside of the occasional holiday $1,000 incentive, they hold their line on pricing of those "special" models.
Adding insult to injury is the repackaging of the Autopilot stuff. My $5K EAP is effectively deprecated and will on the resale market be valued at base level AP which is included in newer cars. With no pathway to reduced cost FSD (outside of the early sale which you had to be on the forums or stalking Elon's twitter feed to know about), there is effectively no monetary value in EAP. At least I didn't buy white as that also would be a kick in the nuts.
All in, I love the car, but I'm not a fan of the volatility of pricing, moving goals posts and the shoot-from-hip actions of the leader. I'm also less enthusiastic about the unsorted self-driving tech that just doesn't work well enough to be anything more than a fun geek's science fair project.
The $7,500 tax credit definitely helped me not take a total bath, but I paid $72,700 ($65,200 with credits) for a car that is today $58,190 (granted I have a couple extra features from EAP that aren't in AP). Fundamentally though, when I bought the car, I felt the tax credits to be from the government and I bought ahead of when I really needed/wanted a new car because of it. So while I'm about $7K, it really is closer to $14K because when I bought, I felt the tax credits were not going to be absorbed instantly. Fortunately, I paid cash, but if I was receiving a monthly statement on a loan balance and see principle balances far exceeding what new ones are trading for now, I'd get a monthly heartburn reminder.