OK Valve State is NOT a transistor amp, from the VS65R upwards they contain Hybrid Tube Transistor technology, I know I have owned TWO of them.

If you doubt me go to the Marshall website !
copied from:

http://www.marshallamps.com/images/archive/valvestate2.html
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VS65R

65 Watt Valvestate power stage into 1x12" speaker.

ECC83 [12AX7] pre-amp valve active on both channels.

Two seperate channels 'Clean' and 'Overdrive'.

Treble, Middle and Bass controls plus Tone Shift switch for tonal options on the

Clean channel.

Gain, Volume, Treble, Bass and dramatic Contour control on the Overdrive channel.

Built-in spring Reverb.

Headphone jack [which mutes the internal speaker].

Line Out jack for connection to external equipment.
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Further:
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The 100 Watt VS100R and VS102R combos, plus the VS100RH amp head are the first amps ever in their price category to offer 3 footswitchable channels and anECC83 [12AX7] valve in the pre-amp. This ensures the fullest possible helping of classic Marshall valve tone on all 3 channels.

These amps will give you incredible flexibility with tones from crystal clean to classic crunch, from brown and bluesy to big and brutal with selections for the Clean channel, Overdrive 1 channel and Overdrive 2 channel all available at the press of a switch.
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Second, thanks to dubuyu's dubious economic policies, the UK - US rate of exchange is about 2 dollars to the pound so you are looking at nearly 600 bucks !