Why would a keyboard with no sound engine cost $450?

Because you're not paying for sound, you're paying for feel and mapping. The Launchkey 88 MK4 has zero onboard synthesis: plug it in and it stays silent until it's talking to Ableton Live, Logic, Cubase, FL Studio, Reason, Bitwig or Ardour over USB-C or its 5-pin MIDI output. What $449.99 actually buys is a full-size, semi-weighted 88-key bed Novation calls its most expressive keybed yet, 16 velocity-sensitive pads that read polyphonic aftertouch through Force Sensitive Resistor technology, nine faders and eight endless encoders, all pre-mapped to the transport, mixer and instrument parameters of whichever DAW is open. That's the trade every MIDI controller makes, but it's a starker one at 88 keys, where a semi-weighted action sits between a cheap synth-action keyboard and a real hammer-weighted piano, and where the closest home alternative, a digital piano with USB-MIDI out, usually already sits in the room.

Novation calls the new keybed its most expressive yet, the same mechanism now equipping a range that runs from a 25-key travel controller to this full-size 88-key flagship.

What does finishing the range actually signal?

MusicRadar's framing is the giveaway: this is the tenth Launchkey MK4 model and the last of six sizes, which means Novation has now built out from a 25-key mini controller meant to travel in a backpack all the way to a full-size, semi-weighted flagship meant to sit permanently on a desk. That's a company betting its control-surface line isn't just a stage or grab-and-go accessory anymore, it's a serious studio centerpiece competing for the same desk space as a real piano or a rival flagship. The bundle backs that read: Ableton Live Lite, Cubase LE, Novation's own Play synth, and instruments from Klevgrand, GForce and Orchestral Tools are aimed squarely at someone building or upgrading a permanent production rig, not someone who wants one controller for a laptop set.

Does a producer who already owns a piano need this?

Probably not, and that's the honest read. If there's already an 88-key digital piano or keyboard with MIDI out in the room, the Launchkey 88 mostly duplicates the keys while adding the pads, faders and DAW mapping on top, a real but incremental upgrade for $450. Where it earns its price is the opposite case: a producer running a smaller controller, or a laptop and nothing else, who wants one box that plays like a real instrument and drives the whole session without patching in a second interface. Novation is betting there are enough of those people to justify a flagship with no sound engine at all.