I suggest that you do not buy any XMR (or any other currency) until you do a lot more research. As others have pointed out there are some problems with some of the criteria you are looking for (for example in terms of how they may impact privacy or scaling).
I have already done a lot more research on crypto-currencies than I did for any of the stocks I have ever purchased lol... and I still haven't decided yet.
I'm still leaning Monero, but didnt buy any as yet, still researching, if Dash over-takes it in the next couple of weeks than that will definitly throw a spanner in the works, but probably wont change my decision in the end...
Can anyone just tell me what will happen to Monero transfer fee if Monero suddenly shoots up in value in a big way? can it be lowered? how is it lowered if it can be? That fixed transaction fee is still my main sticking point for Monero.