Quote: "if it's not money waste, are you people talking about materials waste in building them?"
I think the point trying to be made by 'wasted money' by purchasing a Hybrid lies in the money you will lose on the deal. Hybrids get great gas mileage, but all of the money you'll save while getting that great fuel economy won't even come close to negating the price differential between it and a 'normal' car... especially when the price of gas drops like it has recently.
Example: you would pay $15,000 for a decent economy car (like a Nissan Versa, for instance). You would have to pay nearly $25,000 for a Toyota Prius - leaving a difference of $10,000. Drive both cars for a year. The Versa gets roughly 30mpg (average) and the Prius gets 45mpg (average). Say the Versa uses $1000 in gas annually (at $2.50/gallon) - quick math would have the Prius using only $633 in gas annually for the same amount of miles traveled. So if you banked all of the money you 'save' at the pump by owning the Prius, at the rate of $366 per year, how long do you think it will take you to make up the $10,000 in the difference you paid for the Prius, instead of buying the Versa?
The only way you realize any savings is when the gas prices are higher, and you're spending noticeably less at the pumps than you would've with your 'normal' car because there's a higher savings ratio between fill-ups. The higher the prices, the more money you're 'saving' (which is a psychological trick anyway - even if you only spent $10 for a $20 item, you've 'saved' nothing but instead spent '$10.'). And fluctuating prices could have a huge impact on how long it would take for you to realize any kind of 'savings' benefit buying the Prius has over the Versa. The lower the prices, the longer you're going to have to drive that Prius to 'get your money back.'
In my case with my resurrected Honda Hatchback, I'm seeing immediate results because I've only got $2000 total invested in the Honda (including the cool rims and tires), and that's about how much my Ram drank in gas per year at $3.00/gallon. The Honda gets 38mpg, and the Ram gets 12-ish. I've had it almost 20 months now, and in that time I've only put 3,200 miles on the Ram, and over 6,000 on the Honda. I think sometime around the 28-month point is when the money I spent on the Honda turns into the money I would've spent in the Ram's gas tank. And afterwards, every time I drive the Honda and leave the Ram parked, I'll be realizing that I'm actually 'saving' money by driving the Honda. (Of course, the doesn't take into account the money spent on car insurance, registration, and inspections - which of course cancels each other out for each car and is just money I've spent as a result of owning two cars... well, actually 'four' in my case. But I don't factor that into the equation with the Honda vs. the Ram)
Bottom line: don't buy a Hybrid because you think you're going to 'save' a ton of money in not having to pay at the pump - that's just not going to happen because the short-term cost of the car will kill any long-term savings you're hoping to recoup. If you like a Hybrid (and all of the hassles that go along with owning them), by all means buy one. But just like with anything else involved in 'Going Green,' it's WAY more expensive (at this point) to do so.