At some point you'll just need to make a decision. You will get endless arguements on both sides.

Couple of observations:

1) very rarely do people do a true root cause for failures. Even "professionals" are often speculating.
2) people have collectively run millions of miles on non-pressurized, needle bearing roller lifters w/out failure.

Folks (today) talk about how the bushed roller is better, and the need for positive pressure oiling, and idling just kills them. Sounds good. Where's the data, and analysis?

I love the opinions of professionals. They a immensely valuable contributors here and on other sites. But remember, when they are making recommendations to you, the last thing they want is for you to come through the door with a problem. There is almost no up side for them to tell a customer that they should run a solid roller cam. In fact, it would be silly to do so, IMO.

Here is what I believe to be true to a long happy experience with a solid roller:
1) pick a sensible street type solid roller. If it cannot live with 200 on the seat, and 500 over the nose, its not sensible.
2) buy a good needle bearing roller lifter. If you want to add insurance and $, bush it with direct oiling (just remember, there is a consequence with sending more oil everywhere).
3) lash them tighter than looser, all within reason.

This is what I did. And my idle oil pressure is 15 psi. Lots of idle time and low rpm operation, and my valve train is well behaved even at 6800. Thousands of mile. Lifters are fine.

Is it zero risk, of course not. Is it right for a daily driver that you want to get 100,000 without opening the hood, no. Right parts, good parts, reasonable care, reasonable expectations.

All that said, is the cost worth the HP increase to you?