The technologies are useful for many things in the future, and certainly
useful to hackspaces seen as "build anything centres", even if the
current space is insufficient to house/use them all.
Angling developement toward the items other spaces could use interally
would seem the best option for driven development (the induction heater
for example).
I'm also glad you said colonise rather than terraform or something.
While planetary bodies may contain certain native materials, I
personally feel the drive should be toward living on ships rather than
intentionally throwing yourself back down the bottom of another
gravity-well.
Personally, I think the key to the universe is lunar mining, refining
and automated manufacturing. Self-replicate a bit, build ships and clean
up all the loose debris floating around our star-system, remove the big
random reset button in the sky.