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Hi jazzodict,
Ditto Ving!!
Brought my 8" dob five years ago and I have found it to be an honest all-round performer..quick set-up..good optics..and ease of transport..but DO check them both out in a store..you'll be happy with either one for sure!!!....and have some cash aside for a quality collimation tool and a Barlow...
The optical performance of modern mass-produced optics is quite good and will allow you to observe bright Nebulae's, planets, star cluster and even galaxies..plus features on the Moon!!
Check the colimation whenever you transport the scope..it should only need minor tweeking at most!
The mirrors WILL get dusty, dirty and you will see heaps of it when you shine a torch on the mirrors...so..don't shine a torch on them!!...if it looks dusty..leave it for another year!!...unless the mirrors are seriously grotty that image clarity is noticeable through the eyepiece only then seek EXPERT advice...
I washed the primary of my 8" for the first time after 4 years of use only because it had a water stain on it.
Generally the mechanics are robust..but do take time to learn how to adjust/collimate the focuser as well as the mirrors..also if the base is made out of particleboard...put a smear of silicone on any exposed bits and allow to dry before assembly!!
Enjoy your scope whichever you choose!!
Cheers!
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