Bloodpoints for a warrior?

[Psionide]

How important are these to a warrior? How good is the lifetap is it worth the 8k it is going to cost to buy both of them, just trying to gauge how much worth they are to a warrior is it a nice way to minimize downtime or is it just a gimmick pretty much? Also for the soloing warrior is it worth swapping in a locustlure till it procs for that walking sleep slow,prolly not I am guessing?