Only takes one decent block though, and you would have plenty to stake with
But honestly, 0.1 is quite a small pile - if you were in it for the long haul, it might be worth it to grab some from market and stake them.
That is something that you would have to gauge on your own of coarse, though.

The odd thing is, with staking as it is now; it is a competitive PoS.
Ergo, competing for stake is very similar to competing in Proof-Of-Work for blocks with a miner.
It is an investment in a "miner" to stake lottery blocks, as the block has a definite non-interest based reward.

Interestingly, at the moment, even a small pile staking reasonably often, the ROI figures look amazing