Saw this on their Instagram/Facebook. On the website it says they are giving away a bunch of stuff with the Pro Pulse 220 MTS. The Invertig 400 I don't see any difference so I dunno, I haven't asked. The MIG 200i looks like it has a discount. I think it was $100 or $200 more when regular price. 1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC