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I don't know if this counts, but I've been running a solid roller cam for several years now. I ran a custom Crower solid roller with Crower mechanical roller lifters for 2 years in my old 383. It was pretty mild at 230/236, .600/.590, 112LSA. I am also running a custom Comp Cams mechanical roller cam in my SBC 427, .690"/.650", 256/264, 112LSA. I'm using Jesel mechanical roller lifters and Jesel shaft mounted roller rockers. In both cases, I haven't felt that adjusting the valve lash was a hassle. I usually run the motor over and check the valve lash whenever I change the oil, but they hardly ever need adjusting, maybe once a year.
The way I look at it is that if you're considering running a solid lifter cam, you're the kinda guy who enjoys working/tinkering with your car anyway, and you want to ensure it's always at a high state of tune. If you want something that never requires taking the valvecovers off, then go hydraulic or get a Honda.
If my Vette was a daily driver, I probably wouldn't run a solid cam, but if it's a car just for weekend fun, and you want maximum performance, a solid cam, whether tappet or roller, is the way to go.