I've had an SLO and a Morse model. Bought a Kemper and A-B'd them. There's nothing the Kemper couldn't do that those heads could besides increase muscle mass carrying them around in road cases necessary. Sold all my amps except for my vintage stuff. I'm positive I will never regret it. World class recording engineers and producers can't tell the difference between a good profile and the actual amp in a multi million dollar studio with pristine monitor systems and listening environments so I'm pretty certain you won't either.
Absolutely 100% agree with you. I'm just a little old school, hate in ears, hate frfr .. so I just monitor out to the amp, a couple of 4x12's but line out to front of house. The Stage is primarily for fly gigs, festivals and such.. having the ability to take a snapshot of my tones and take them on the road, priceless.