Want to know something strange about the synthesizer world? While new synth items can cost you a pretty penny, some of the older analog gear can cost you more than double of what you would pay for something that is state of the art. Strangely enough, these old units that once gathered dust as selling off for many time the original price of it when it was new in box. What is even weirder is that these machines are not actually coveted due to the sounds that it can produce, rather, they are wanted for their shape and form.
It is not unlike the reasons why a person buys an old beat up car that does not run. On the outside, the car may seem useless without a proper motor and workable parts, but once it has been tuned and tweaked, it has been turned into quite the machine that nobody can really touch. If one wants to buy a synthesizer kit, let it be known that better sounds can be had for cheaper – but you simply cannot digitally emulate the physical characteristics of an antique box that is hard to find. A TR-808 kit is worth replicating for its looks alone.
http://createdigitalmusic.com/2013/11/tr-808-diy-379e-lets-built-part-part-analog-clone-plus-sequencer/