LS25 Steam or Giants Version?

After a long period of skepticism, I now want to buy the LS25.
But as banal as it may be, I can't decide whether to buy the Steam version like I did with the 22nd, or a key for Giants without DRM like I did the two times before. – Unless they've changed that.

I switched to the Steam version last time because I
a) I often had problems downloading directly from Giants and
b) I was hoping for discounts on DLCs, but there was nothing there for me.

Both have advantages and disadvantages.

I pay a few euros less for the Steam key at Gamesplanet, and Steam has good servers. But DRM-free games should also be supported while they're still available.