I do get the point, but we are not new to Blizzard, we are all used to RNG, and "random is random"
Some on jsp posted how on his WD he found a furnace
I am para 600+ I have yet to find a furnace and all I gamble for are 2h weps.
So yes playing more ups your chances but nothing is guaranteed.
I have a nice pet and jade doc, I got bored farming for a furnace, so I made a DH, i have a 4.15 m6 DH and got lucky, within 1 month its better then my friends DH's that all been playing DH for a year+.
If there was a guaranteed wait to obtain an item based on time or a method, it would be exploited to hell, we all know this already