dr. vic expressed the same perplexities i had answering to a similar thread some time ago... BKPs are very clear and, for this reason, not beginner-friendly... BUT, and here i'll answer directly to his points,
1) this is not entirely true. i have got a live rig with tube amp and analogue effects (the only digital element being a delay/reverb rack DSP), but play and record at home with a full digital modeler, a PODxt. and pickups make A LOT of difference in modeling too
2) this is, on the other hand, absolutely true. there's plenty of more forgiving pickups out there. consider them like sport cars... if you drive them well you go faster, but it's harder to keep them on track!
3) i agree on both points. definitely double edged.
4) i think you could try first some "easier" pickup in the metal range... i was thinking about warpigs. enough tight not to drive you out of time, not so tight and "in your face" to leave you helpless if you're less than precise... and enough warm to drive away the coldness of your guitar
i'd say that the extra value you'll have changing the stock pickups can be achieved with every aftermarket product, not necessairly BKPs.
i was curious to try them and after that i equipped every piece of wood in my house (tables and chairs included :P) with them, but before i was quite happy with Duncans, i'd say...
and one last thing... i've got a bugera 333xl head and it rocks!