I may be overcritical here, but I think 1W is a bit of a joke. For me the perfect watt range is 10-20Watts, as that enables you to get a good sound both in the bedroom and in rehearsal. Just as the 100Watt amp is too loud for at home, the 1W is too weak for outside of the bedroom. Marshall could have made those amps a single-ended EL34 amp - that is a classic Marshall tube after all (except for the very early ones) and that would make those amps far more flexible.
Keep in mind that amps like Hughes& Kettners Tubemeister (?) or ENGL's Gigmaster both are 15 Watts and have a built-in power soak. That is what is needed nowadays.