That's to be expected, but find the process of creating new ones eventually becomes tedious, since there isn't usually a feature that allows you to easily revive a dead minion (I could be completely wrong, it's been awhile.)
I cannot remember what gave me the idea, but in a hypothetical scenario my idea would go like this;
You begin with three or so happy skeletal minions frolicking alongside you through the great fields and forests of Cyrodiil. While indulging deeply in all the golden pleasures nature does offer, a lone mudcrab scuttles up to you. You beam at the creature, showing your teeth (fangs) in a warm display of compassion.
The mudcrab swings at you with his hammer! You were able to playfully dodge his attack, but your minions were not. All three were destroyed!
Unable to intentionally kill another living being, you respond with a swift kick to the feelers. The mudcrab flies far off towards the horizon.
Upon landing, he is ravaged by hordes of zerglings. (He later dies)
Well I lost my point. To sum it up I was wondering if anyone with experience using the construction set and other tools would know...
If having your summoned minions (with a limit to the number) revive after combat has ended could possibly work? That way you can have your permanent minions, and keep them, and not have to have them be individually very powerful to be some help in combat (since they last and are excellent cannon fodder).
(Please excuse the oddness)