The cheapest SSL options there ($20 and under) offer NO verification of the applicant of the certificate. Thus, you could be a scammer for all they care, as long as you control your site (even a phishing site) they've give you the "domain validated" certificate.
Stick with either EV (green bar, extra assurance) or a high-assurance only shop like DigiCert, Symantec, Entrust, or GlobalSign. It'll also show your users you care about trust and identity assurance online.