SO FAR, SO GOOD ... SO WHAT! by MEGADETH has sold 1,160,000 copies in Canada, United Kingdom and United States.
SO FAR, SO GOOD ... SO WHAT! certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
|  Canada | 100,000 | 1x Platinum | 1992 |  Canada Sales: 100,000 Certification / note: 1x Platinum Certification Date / sales as of: 1992 | 
|  United Kingdom | 60,000 | 1x Silver | 15 February,2019 |  United Kingdom Sales: 60,000 Certification / note: 1x Silver Certification Date / sales as of: 15 February,2019 | 
|  United States | 1,000,000 | 1x Platinum | 26 May, 1998 |  United States Sales: 1,000,000 Certification / note: 1x Platinum Certification Date / sales as of: 26 May, 1998 | 
| Total sales | 1,160,000 | (in 3 countries) | Total Sales: 1,160,000 (in 3 countries) | 

