I see a lot of people comparing the last-gen Supra to this new one, but still retaining the value of a used Supra and a brand new car off the lot. If my memory serves me right, the original Supra wasn't far off this new one in terms of price and performance. In fact, they are extremely close. The old Supra is currently viewed as a pop culture icon, so comparing directly to its "comeback album" isn't quite as fair - but if compared quite simply as a product of their respective eras, I'd say Toyota delivered a Supra; not the way we remembered it, but the way it actually was. Once this thing ends up buried in aftermarket galore, we'll be seeing 600whp Supra's again.
My biggest worry is the direction of the car. I would think it would have been wiser to market the car to more prospective buyers by directing it towards the demographic that worships this car the most, but instead its selling itself as an alternative to the Porsche Cayman. A spec sheet is one thing, but there are many perks that come along with Porsche ownership, including the various services and programs Porsche has available for their customers and the premium experience that goes with it - not to mention the fact that it's a very nimble mid engined car. I'm surprised to see Toyota wanting to go toe-to-toe with a car that even BMW doesn't even box with it, unless you get the more expensive BMW M2, despite the fact that the Toyota is an obvious relative to the current gen Z4.
A $50k MSRP with dealer markups (lets not forget the Focus RS and the GT350 in the US market, and even the KIA Stinger), for a sports car with a missed third pedal, wanting to dance with a mid engines Porsche. Seems to me like the biggest benefit is having a BMW, but paying Toyota money for it with Japanese warranty to boot - and that, to me, seems like a miss in direction on Toyota's part. Those who would have otherwise loved a new Supra, probably weren't looking for a cheaper Z4.