Reverb and "British" Amps. A Question

[Pablomago]

Around 1963, American amps started sporting reverb. Fender, Gibson, Supro, Ampeg...
But British amps of the same era continued to be sans-verb. Marshall, Vox (UK models anyway), Hiwatt etc. Why didn't they add reverb? An inability to procure reverb tanks? Musicians in the UK didn't care? Does anyone know the answer?

 

[RayBarbeeMusic]

Just a guess: Those amps were often run with clipping in the power section. Reverb takes place before the power section. Clipping on reverb doesn't sound good.

 

[guff]

Clipping on reverb doesn't sound good.

*snorts*