If you think that Namecoin is a valuable project, then use some of the money you don't need and buy some Namecoin. I think, the price is so low, because bitcoin miners get Namecoins for free via merged mining. They sell it immediately since they bought mining hardware for Bitcoin and not for Namecoin. However, since Namecoins cost virtually nothing in the moment, it should be quite easy to dry-out the markets by buying relatively big amounts of Namecoins. Provided, there is more than one person buying Namecoins.

There are only 21m Namecoins and it is easy to buy 1000 Namecoins. With 1000 Bitcoins, a person is already considered to be very rich. Hence, 1000 persons buying 1000 Namecoins reduces the available supply by at least 1/21.

Additionally, the next Namecoin reward halving is around the 14th of October 2018. Thus, the supply will be reduced further this year.

Taken together, buying Namecoins plus the reward halving might show a visible effect on the price this year.