Well from my experience I can tell you that when you produce normal that are the by product of other pairings they are VERY hard if not IMPOSSIBLE to move quickly.Is it a bad thing?
Considering that the retail is about $15/$20 and that the demand is very low for normal hatchlings, especially since you have several single gene starting at $25 to $75 (male and females), no it's not a good idea unless you want to lose money, if you are looking at the business end of it or at least the economics of it.
By the time you will sell them if you do you will have spend more money on food and and housing than what you will sell them for.
The only normal that do sell are proven adult females and the retail is about $50 to $100 based on size.
With that in mind if you want the experience why not I guess, but remember that the experience is not everything and that you might have to keep them for a long time and the question is are you prepared and can you afford it?
And if you do pair Normal to Normal you can always wholesale the hatchlings out of the egg locally for the pet trade or as feeders but you should check on that first if this is the route you want to take.
Ads that you see online asking for clutches are usually designed for people producing larger numbers.
So ultimately it's your decision, would I breed Normal to Normal? Nope, I don't even breed normal females anymore and if I did the only way I would consider it would be to breed them to a Super.