Fortifying Magic Skills, What's the purpose? Options

[dogybab]

what is the purpose in fortifying your skills, especially magic skills? in my experience when magic skills are boosted by spells, enchantments, or even being a vampire, they don't seem to benefit you in any way other than being able to buy or create spells. Also you don't get any skill perks either in your other skills. what gives?

[Joryn]

I was actually wondering what the point was of fortifying a skill over 100. I noticed it does jack (at least for magic skills). I remember fortifying my conjuration in
Morrowind so that I could summon golden saints and winged twilights easier. Now it seems that, while you get skill perks, youre stuck with them at lvl 100. Kaput. Finito. Shazam. Abra Kadabra.