Right. Having a decent sized reusable first stage on Neutron gives RocketLab the option of a reusable upper stage down the road. It’s pretty tough to justify going for full reuse before you have even accomplished partial reuse. Something similar to the recovery method of Electron’s first stage would be appropriate for a reusable upper stage. (And at one time, SpaceX was planning it for Falcon 9’s upper stage... ballute/heatshield and parachute for Falcon 9 upper stage recovery).