You can get a 12.5 inch Discovery dobs delivered to your house for less than $1500. You can check ASTROMART or ebay and find used scopes of large dimensions for chump change.
WOW!

Don't make the mistake of starting with a complex comupter controlled scope. Too many people do. You'll regret it. And (FWIW) don't try astrophotography for at least 5 years after you purchase your fists scope.

Regards,
MH