Good point Ving, I owned my ETX goto first then bought the GSO rust'o'matic, I kept the ETX as a guider for the dob, I set them both up at the same time, I bought the same finder for the ETX as is on the dob (looks kinda funny) so I can compare sky views, works a treat, so dont sell it, buy a cheap secondhand ETX, even an ETX70 will work, you'll get so much more from your viewing.