There are both advantages and disadvantages.One thing you can consider is that, softlogic will sell only "made by nokia" phones since softlogic is the nokia agent in SL and officially, made by nokia phones are maufactured to sell in asian reagons rather than other. But if you want to get a finland phone model, you have to buy from somewhere else.
And there is a nokia care center in SL. so you can get your phone repaired easily without any probs (i think) no matter where you bought it from.
The other thing is, in your case the price difference is maybe 6k-7k. But usually softlogic has a price difference around 20k-40k for high end phones!!! and that is too much@!@@@@!!!!