That would be a Marxist-Leninist system (or rather a Marxist-Stalinist one).
Marxism doesn't say anything other than the society en masse and through democratic means has a say on what the level of production is for each sector. They could have just said "that's enough" if they prioritized leisure.
Of course USSR had two problems: it was underdeveloped, and it faced huge dangers from outside ("capitalistic") powers, so it had to ramp-up its production pronto (else, it would have been squashed by Germany in WWII, for example, something which the industrialization prevented). A single country (or even a small alliance) cannot adapt that well to doing what it wants (e.g. emphasize leisure) without falling prey to other powers around it. That was the whole hoopla with the notion of "socialism in one country" btw ( http://en.wikipedia.org/wiki/Socialism_in_One_Country ).