I have TE37 18x9.5 on my Evo and love them. One of the highest quality and most timeless designs ever. I waited about 7 years to get some on any of my vehicles. Strength to weight ratio is seldom paralleled. What size are you talking? Obviously a 20x10 is going to cost more than a 17x8.
Yes they are expensive but you need to look at the bigger picture. Mackin/Volk/Rays isn't just "thinking" of a price. They are manufactured in Japan and imported, adds cost. They are forged in some of the best (most expensive) manufacturing processes. The availability of sizes is excellent, but due to all of this, most are custom-order. Wheels like this a manufacturer doesn't just pick a some popular sizes and manufacture a whole bunch of at once, at least not to the extent of cheaper, more broad market wheels, so this increases cost. Many wheels from different brands are often manufactured in the same factory. Not so with Mackin, they manufacture their own. Owning all that technology, tooling, etc. is a massive investment.
Everyone wants caviar on a McDonald's budget. You want the best, you have to pay.
You could just drive an F150 with cheap wheels cast in a third world country or something, but there's a good reason you don't...