The only problem with your argument is it's not correct.  Spreadcoin is not a copy paste of Darkcoin.  Spreadcoin's masternode system is written from scratch.  In fact, it's so good, that very shortly after the Spreadcoin developer released the code, Evan Duffield made a post detailing how he was going to do the exact same thing as what the Spreadcoin dev did.

Seriously, look at the time stamps here:

http://spreadcointalk.org/index.php?topic=37.0 - Our dev releases his code January 27, 2015, 11:48:42 AM

https://darkcointalk.org/threads/v0-11-1-instantx-development-update.3769/ - Your dev writes his masternode update thread: January 27, 2015, 3:14 PM

And here is our dev explaining that's exactly what Spreadcoin already did: https://darkcointalk.org/threads/v0-11-1-instantx-development-update.3769/page-2#post-39115

The fact of the matter is, Darkcoin now has a very viable competitor that not only has a much more userfriendly masternode system (we created over 1600 masternodes in less than 48 hours on testnet because it's so easy) but it is much more profitable to run a Spreadcoin masternode as detailed here -- http://spreadcointalk.org/index.php?topic=101.0

So keep buying your Darkcoin at these levels and I'll buy my Spreadcoin at these levels and run masternodes that are much more profitable.  Then in a couple months, maybe Darkcoin's new masternode implementation will be as good as Spreadcoin's is now.

Copy/paste?  By all means keep discounting the first serious competition Darkcoin has that is using similar technology and doing a better job of implementing it.  We'll see where we are in 6 months.