But this only increases YOUR odds of success, right? It's not like you're going to cram 200 spell points into a 60-point Exquisite Belt, right? You can learn spells to boost Skills, then enchant attire you later wear for enchanting. I know you can stack all manner of potions to bump your Luck and Intelligence.
You can imbue items with any spell you know (so it pays to know all types of spells).