I've even heard experienced opiate users say things like "I wouldn't recommend this even if you could find it for cheap, even common Hydrocodone filtered is a far more powerful and pleasurable experience than Morphine Sulfate." Erowid Experience Vaults: Morphine - All the Bad of Other Pills, None of the Good - 44932 And the bio availability of that drug orally is dismal. That's why they made all the other codones. Morphine is for shooting, pill morphine is pretty much useless recreational wise especially as expensive as you are saying.
When you buy morphine make sure you know weather it's sulfate or HCl, cause they both have different properties that effect how they should be best injested.