'conceptual appeal' is correct and is often used in written English.
You can use this phrase when you are discussing something that appeals to an individual on a higher level than the physical or tangible elements, such as the way the concept of a product or service can be appealing. For example, "The product's conceptual appeal made it an attractive choice for those who value originality and creativity."
The delicate health today of the European single currency should not obscure its conceptual appeal.
A defense of its function, or its conceptual appeal, must be made.
Hence, there is conceptual appeal to treating patients with doses of MTX and cytarabine capable of penetrating brain parenchyma.
Although this hypothesis has conceptual appeal, the identification of the thrifty genes has so far remained elusive.
First, although the heat index has conceptual appeal for environmental health research, in many communities temperature and heat index values rarely differ.
Despite the conceptual appeal of envisioning adaptation as a process that unfolds on rugged adaptive landscapes, it is generally difficult to observe that process [ 11, 12].
The first is that while aid effectiveness has a conceptual and rhetorical appeal, when operational details are added the consensus may break down, particularly if the status quo is challenged or in-country working methods disrupted.
Together with "Fame After Photography," commissioned by the Museum of Modern Art, and "To the Rescue: Artists in an Archive," a project based on the archive of the American Jewish Joint Distribution Committee, these exhibitions were noted for their conceptual ingenuity and popular appeal.
And what made me laugh like a drain when I reviewed this was the fact that one of the editors actually commented, without irony, that some readers had "suggested that all we had done was to present some very obvious and well-known ideas and dressed them up in fancy conceptual language – designed to appeal to restricted elite audiences who shared the common code of jargonised text".
In explaining modal features in terms of an involvement relation between concepts, Spinoza thereby identifies himself with a long and distinguished tradition of philosophers who explain modal facts by appeal to conceptual relations.
According to one proponent, a conceptual analysis proceeds "by appeal to what seems to us most obvious and central about [the concept in question]…as revealed by our intuitions about possible cases" (Jackson 1998, p. 31).
