Kamasutra 6.5.12

6.5.12

tatrāpi dhanavad adhanavator dhanavati viśeṣaḥ/ tyāgiprayojanakartroḥ prayojanakartari viśeṣaḥ pratyakṣa ity ācāryāḥ//

When there are two lovers, one of whom is generous, and the other ready to do any service for the courtezan, some Sages say that the one who is ready to do the service should be preferred, but Vatsyayana is of opinion that a man who does a service thinks that he has gained his object when he has done something once, but a generous man does not care for what he has given before. Even here the choice should be guided by the likelihood of the future good to be derived from her union with either of them.

When there are two lovers, one of whom is attached to the courtezan, and the other is simply very generous, the Sages say that a preference should be given to the generous lover, but Vatsyayana is of opinion that the one who is really attached to the courtezan should be preferred, because he can be made to be generous, even as a miser gives money if he becomes fond of a woman, but a man who is simply generous cannot be made to love with real attachment. But among those who are attached to her, if there is one who is poor, and one who is rich, the preference is of course to be given to the latter.