Umm… no?Contrary to popular belief, enhancing costs are exactly the same exp-wise.
If you followed the link, you'd see that it says that you need to HAVE a certain level (max is 30) in order to enchant, but you only have to SPEND 1-3 levels (plus ingots) in order to enchant. Jeb said the cost of gaining levels has gone up a bit, but I seriously doubt it's gone up to the point where the experience to get from lv.1 to lv.30 now will be the same cost to get from lv.27 to lv.30 in 1.8. I doubt it will be anywhere close.