Back when I was doing recordings for National Public Radio & others, I had a Levinson ML-5 which was a Studer A80 transport with Levinson electronics. Mark still owned the company then.
A bit later, I also acquired two 30 IPS Stellavox TD-88s, which I had modified. All three machines were 30 IPS, with 15 also available. Yes, there is an unavoidable head bump at a low frequency with 30 IPS, but it never got in the way of sheer musical immersion.
I made hundreds of recordings with these machines. There's no way that ANY vinyl - no matter how well it is produced - can compare to a 30 IPS master, or even a 15 IPS recording, IMO.
The problem that no one ever discusses (I can only assume that they are aware of it) is that these tapes start to lose their original quality after a few playbacks, and continue to deteriorate over time.
That being said, even if deteriorated over time, tapes are an astonishingly good source, but they need careful handling. I NEVER rewound a tape. Instead, I had another transport that would play the tape out - rather than rewinding it - thereby avoiding the print-through demon.
Because many of the artists were well-known, I never allowed Magnepan nor Apogee - both of whom used first generation digital copies of my tapes at CES - to even hint at the identity of the artists. They both won best-of-show accolades at CES shows. In no way am I saying that these master copies did it for them, but they didn't hurt, IMO...
30 & 15 IPS analog tape is better by far, IMO, IF it is handled & preserved properly. Even 7.5 copies are nice, but of course they are a pale shadow of the 30 IPS master, if it even still exists and hasn't deteriorated too badly..