The Group Buy goal is just 50 people which brings the price down to $50 for a large collection of sounds created with a Virus TI. It also utilizes Kosmos, the unique scripted synth front end which treats the instruments as waveforms for a dual oscillator synth.
It costs $25 to sign up for the group buy and you get access to Starburst immediately. Infekted Lite is also available which uses 20 instruments from the collection to make a Kosmos Synth. Kontakt 3 or later is required.