No matter; if it is true that points are the rewards for victory, it is but a matter of time before one has ample. And it is just as well, as one's shopping list appears to be ever-growing. One wishes to sample these "unit abilities" one has heard so much about, for example.

Must fortunate it is that one has no need to purchase memories, at least, else one's work would never be done.

In any case, until one is able to construct an oasis, as you say, one has found a nearby pond in which to comfortably pass the days and nights.