How does Boulder equipment avoid obsolescence?

I am going to ask the question it seems no one else is asking. In this time of here today gone tomorrow technology, how does Boulder continue to essentially run the same lines year after year? Case in point the 2050,2060,2010,and 2020 line have been in production for over 13 years now. The only thing that has changed in that time is the price, which keeps going upward 2050's now go for 83k, the original price was 59k. Look I understand that good engineering is a big part of their success i get that, It seems the space shuttle was once cutting edge technology in its time too, but no more. As it will technology has a shelf life why not the Boulders ?? For those curious of my diatribe on Boulder the why, I am considering purchasing the 1012 as a one box front end solution and can't help but wonder am i buying old technology here ???