I don't think there is much point spending tens of thousands on a mount if your optics and camera are only worth a couple of thousand. If I had unlimited money to spend then I'd go for it and upgrade the mount, scope, focuser and camera. Having said that, I still live in a highly light polluted suburb with extremely limited horizons so if I didn't enjoy tinkering with the gear I'd be better off hiring time on a remote scope (or just purchase Hubble images).
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