In one particular case — yes. The Offhand items from the Level 8 Equipment Vendor (on Fleet) have Armorings/Hilts/Barrels that cost 35 credits to rip out, but sell for 100 credits. The items themselves sell for 4395 credits after doing the above, so it's a really good way to convert Common Data Crystals (6 each) into credits.
Of course, if you have a Cartel crystal unlocked you can redeem a copy for free and insert it into the item, and then just sell the whole item for 4495. So as with the general case, you're still losing potential money by taking out the mod.