Not really, I mean you could pair a pastel and a spider to get a bee which is more expensive. Normally if you want the high end, more expensive morphs you have to invest in the more expensive morphs to make them.
A 2 gene animal paired to another 2 gene animal is going to make a more expensive morph (if the odds are in your favour) than two base morphs paired. Unfortunately if you want to get into the high end stuff be prepared to put a lot of money, blood, sweat and tears into it and don't expect to make any particular money. The BP market isn't what it once was and it's never going to be a big money maker really
My advice would be to make what you like, enjoy it and research what you can make and what interests you rather than focusing on the "expensive morphs"