YaCoin is different than the other coins because the intial coins were mined by millions of normal people with CPUs. Thus, there's already a lot of stakeholders.
As soon as YaCoin is able to be mined with GPUs there will be another wave of stake holders.
This is different than any other altcoin so far.
For this reason I think YaCoin will be valued much higher on the exchanges. Obviously it will go to an exchange.
I will comment the GPU issue here. Yes, it is possible to develop OpenCl or cuda miner for scrypt(N, 1, 1). But the CPU / GPU hashrate difference will be less than 10 times and will decrease over time. So GPU's contribution into miner's total hashrate (even in case somebody will implement this) will be like one or two additional CPU cores. This is because scrypt will need more and more fast random access memory with N increased.
RAM? My system has 16 GB of Ram, and my 7950 has 3 GB Ram...