Well, I don't necessarily agree that anybody would want a Mosin Nagant given the choice. By way of example they don't make them anymore and someone new to this knew enough to question its usefulness when it matters. What more could one ask?
Accuracy, rate of fire, speed to reload, controlability, low recoil, light weight, short length, balance, reliability, light ammunition, replenishable ammunition, inexpensive modern ammunition, ammunition that won't be obsolete in a generation, non-corrosive surplus, incalculable options, made in America, well made, new, warrantee, bragging rights... Someone else can finish for me please.