Erm, I don't mean to be rude but what all these Nooobs (thats newbies not knobs) forgot to say is that the DX100 is to Detroit what the TR303 is to Chicago. Yes Native Instruments FM7 does the same stuff, but its very processor intensive and I cant say I trust the code they churn out. Abletons Operator will also produce very similar sounds and is a good synth despite what all the whiners on the Ableton forums say. Normally I'm pretty pro-software (all my stuff is done in purely in Reason these days) but I'd say keep it if its classic Techno sounds that youre after. Check out the people who have used one - off the top of my head Derrick May, Jeff Mills, Kevin Saunderson. The DX100 is a 4 Operator FM Synthesizer not a PCM sample based Workstation.

You have a classic, good piece of equipment there! Keep it and, more importantlly, use it!