It may seem impractical to worry about state house seats in a legislature that is so overwhelmingly Democratic, but it never hurts to have a farm team that could eventually produce at least one Congressional seat from the state.
Mitt Romney aggressively recruited Republicans for downballot offices in 2004, raised money for them, and campaigned on their behalf. The people of Massachusetts responded by
increasing the already massive Democratic majorities in the legislature.
It is a one-party state, and you just aren't going to be successful there, even on the local level (the Republican equivalent would be Idaho).
