It's not really all that important.
Really there are only a few reasons for my using any given yeast: Ease of pitch, the flavor profile, diacetal production, and flocculation.
Other than those considerations I don't see much point on worrying over the yeast format whether dry or wet.
If you start filtering or getting into fining agents you may care less about flocculation
But come on, for a lousy $6.00 per brew cycle you get a smack pack from WYeast or a bottle from White Labs and you are golden.
If you want to do your own starters just use a giant PET soda or liquor bottle, they hold plenty and you can oxygenate the starter at will by shaking the hell out of it.
When hydrating dry yeasts use only cool-ish sterile water and don't add wort till after they've had a good soaking. The cell walls will be overly fragile at first so it's best to let 'em wake up from their little nap before feeding 'em. Give 'em like 5 to ten minutes.
