Granny, suede leather is produced by chrome tanning (or chrome-oil tanning), which varies quite a bit from vegetable tanning. The leather we use for carvings, holsters, sheaths, saddles, etc. is veg-tan leather, and is subject to absorbing moisture, then drying out and getting very stiff. To prevent this, we condition and seal it. Chrome tanned leather won't get stiff like veg-tan because it was tanned in a different way. Though it might need to be cleaned periodically, using a suede cleaner, you don't need to worry about sealing it.
Also, most of the products we use as sealers ( like lacquer based, or wax based liquids) would cause the suede to lose it's soft feel.