OT: U-He Diva and Repro for 50% off (and also a separate bundle with effects)
I was just considering buying these 2 synths last night and, lo and behold, it was clearly meant to be! Still not cheap, but compared to the quality, it's a bargain. Be forewarned that these analog emulations can eat CPUs alive depending on you configure them and play them. But the sound.... oh, the sound.... If you use a PC as well as iOS for music, and there's any way you can scrape up the cash, these are among the best VSTs made to date.
Basically, with Repro, I don't ever see myself buying a Prophet. Diva is a bit of a chameleon, able to sound like a lot of analog synths.
All I have left to buy, separately, is Synapse Audio The Legend to get the best Moog D emulation, and then some wavetable synth like Hive2, Massive2 or Dune3, etc.