I agree with T.T's earlier post that ceramic isn't necessary. Yes, it is harder and smoother, but the added cost doesn't justify the minimal benefit that you may recieve.
Stainless steel bearings with ceramic balls are manufactured by several companies and are more for high-load/high-speed use. They are smoother running. The spool on a reel will reach a few thousand rpm's at best. This is pretty slow for most precision bearings. When casting there is little load on the spool. When cranking there is more load on the bearings but you probably still wouldn't notice the difference. (Tie into a large sailfish or black marlin and they will show you what a "fast spool" really means.)
For casting, you'll get more benefit from a lightened spool than from ceramic bearings. Easy to start spinning and easy to stop spinning.
Where ceramic really shines is corrosion resistance, temperature resistance, and ultra-high rpm's (like 60,000).
For live bait fishing you want the super duper, spin for an hour spool. The duration of the spin is decieving because your little bait fish is dragging the hook, line and turning the spool. The baitfish doesn't care if the spool spins for 12 hours - he cares how easy it is to pull the line off the spool. Baitfish aren't known for their horsepower, so you've got to help them out. The hook and line are pretty limited by what they are, but the reel can be tweaked to no end.
A spool that is "easier to turn" is determined by several factors such as:
1. the resistance of the bearings to rotation
2. the weight of the spool with line
3. the diameter of the spooled line at the point where it comes off the spool.
The bearings are the easiest to experiment with but they can only do their part.