Even with tons of points, you can spend it extra metal, plasteel, sandbags if it isn't prison, AP, stuff for the tank. Stuff like extra OBs and supply beacons - or maybe a sentry if you're really hurting for stuff to buy. All these help more than one person.
If you get an HPR from the weapons crate in req, you're all set, but it's always better to stockpile what MIGHT be needed over what one person wants for fun.