IMO, a well executed subwoofer/mains system is very hard to beat. However, the "well-executed" part is the trick. All of the best sub implementations that I've heard use digital bass management and/or room correction and a lot of folks here won't go that way on principle.
If that approach bothers you, I'd agree that you might want to pass on adding a subwoofer. BTW, I'd never add a sub to Verity speakers (I own P/Es), unless you plan to ditch the bass pedestal units. The Parsifal design is terrific, and I love mine, but IME they are not designed for flat, extended bass response. Adding a sub without some EQ in the mid-bass would almost surely be a mess and, even with EQ, the octave to octave balance of the speaker would be substantially altered.
If that approach bothers you, I'd agree that you might want to pass on adding a subwoofer. BTW, I'd never add a sub to Verity speakers (I own P/Es), unless you plan to ditch the bass pedestal units. The Parsifal design is terrific, and I love mine, but IME they are not designed for flat, extended bass response. Adding a sub without some EQ in the mid-bass would almost surely be a mess and, even with EQ, the octave to octave balance of the speaker would be substantially altered.