I usually collect several soundsets into one bundle.

Buying a bundle of presets is more beneficial than getting a single soundset. 

The list of Bundles:

Moog Grandmother Bundle - 120 Presets (20% OFF)

Moog Matriarch Bundle - 150 Presets (25% OFF)

Moog Subsequent 37/Sub 37 MONO Bundle - 128 Presets (20% OFF)

Moog Subsequent 37/Sub 37 RHYTHMIC Bundle - 192 Presets (20% OFF)

Moog Subsequent 37/Sub 37 COMPLETE Bundle - 384 Presets (40% OFF)

Moog Sound Studio Bundle - 150 Presets (25% OFF)

Moog Subsequent 25/Sub Phatty Bundle - 128 Presets (20% OFF)

Novation Peak Bundle - 214 Presets (34% OFF)

ASM Hydrasynth Bundle - 256 Presets (30% OFF)

Arturia Minifreak Complete Bundle - 552 Presets (45% OFF)

Arturia Minifreak Rhythmic Bundle - 128 Presets (20% OFF)

Arturia Minifreak Poly Bundle - 128 Presets (20% OFF)

Arturia Minifreak Mono Bundle - 128 Presets (20% OFF)

Arturia Microfreak Bundle - 170 Presets (35% OFF)

Arturia Matrixbrute Bundle - 128 Presets (20% OFF)

Korg Minilogue XD Bundle - 215 Presets (40% OFF)

Korg Opsix Bundle - 250 Presets (40% OFF)

Korg Wavestate Atmospheric Bundle - 200 Presets (30% OFF)

Korg Wavestate Rhythmic Bundle - 100 Presets (20% OFF)

Korg Wavestate Complete Bundle - 450 Presets (45% OFF)

Korg Wavestate Era Bundle - 100 Presets (20% OFF)

Korg Modwave Bundle - 200 Presets (40% OFF)

Behringer Model 15 Bundle - 100 Presets (20% OFF)

Behringer Crave Bundle - 65 Patches + 148 Sequences (25% OFF)

Behringer TD-3 Bundle - 448 Patterns (30% OFF)

Behringer Pro-800 Bundle - 250 Presets (40% OFF)

Behringer Kobol Expander - 100 Presets (20% OFF)

MIDI Patterns Acid/303-Style Bundle - 448 Patterns (30% OFF)

Elektron Digitone Bundle - 192 Presets (34% OFF)

Elektron Analog Four Bundle - 192 Presets (35% OFF)

Elektron Syntakt Bundle - 128 Presets (20% OFF)

Dreadbox Typhon Bundle - 128 Presets + Sequences (20% OFF)

Dreadbox Nymphes - 98 Presets (25% OFF)

Synapse Audio Legend HZ - 150 Presets (20% OFF)