> When business A fails, the owner does not sublet to business B - they sell their lease, and they charge a hefty fee. So business B has to pay for the privileg

> When business A fails, the owner does not sublet to business B - they sell their lease, and they charge a hefty fee. So business B has to pay for the privilege of paying already exorbitant rent. If business A can sell the lease for a premium then the market rate for that lease is higher than originally signed. Even if they broke the lease, the owner would likely charge the higher rate to business B. The owner won't just automatically just give the new lessee the same terms