Oh I know. I remember the first time I realized that I can never afford to buy pretty much any of the techs that I use, even the smallest. But I can make a tech that costs $2million. Heck, I probably have the parts right now to make a tech that costs upwards of 10 million. It would be very nice if we could buy techs for their cost minus the blocks we have. Have all the blocks? The tech is free, it just uses it up all of the necessary blocks from your SCU.
If you want some real sticker shock though, look at the techs that @reaperx1 makes.