I modelled it out assuming price cuts for all three systems, Mother's & Father's Day boosts for Wii Fit in 08'/09', longer winter holiday boosts for Wii Fit because Japan's peak sales are in January rather than Nov-Dec, and likely sales for each system...
My take: 220 weeks from Wii Fit's launch in the Americas, it will permanently pass GTAIV worldwide.
I simply extrapolated the GTAIV sales for PS3 & 360 combined and assume it will sell ~300k ish in Japan as well.
All units are sales, worldwide, in thousands.
Week | GTA IV (WW) | Wii Fit (WW) |
1 | 5900 | 1716 |
2 | 1680 | 850 |
3 | 840 | 600 |
4 | 540 | 520 |
5 | 290 | 300 |
6 | 165 | 315 |
7 | 130 | 245 |
8 | 110 | 225 |
9 | 100 | 200 |
10 | 95 | 160 |
11 | 95 | 145 |
12 | 95 | 135 |
13 | 95 | 130 |
14 | 95 | 127 |
15 | 95 | 125 |
16 | 90 | 124 |
17 | 90 | 130 |
18 | 90 | 135 |
19 | 90 | 140 |
20 | 90 | 120 |
21 | 85 | 115 |
22 | 80 | 110 |
23 | 80 | 100 |
24 | 80 | 95 |
25 | 80 | 90 |
26 | 80 | 90 |
27 | 80 | 100 |
28 | 85 | 130 |
29 | 90 | 150 |
30 | 105 | 170 |
31 | 125 | 265 |
32 | 135 | 240 |
33 | 150 | 275 |
34 | 200 | 350 |
35 | 225 | 185 |
36 | 250 | 185 |
37 | 275 | 170 |
38 | 200 | 165 |
39 | 120 | 120 |
40 | 90 | 110 |
41 | 75 | 100 |
42 | 65 | 85 |
43 | 60 | 80 |
44 | 55 | 75 |
45 | 50 | 70 |
46 | 50 | 65 |
47 | 50 | 65 |
48 | 60 | 85 |
49 | 65 | 105 |
50 | 70 | 110 |
51 | 60 | 90 |
52 | 50 | 120 |
53 | 45 | 115 |
54 | 40 | 110 |
55 | 35 | 90 |
56 | 35 | 75 |
57 | 30 | 65 |
58 | 25 | 80 |
59 | 25 | 65 |
60 | 35 | 55 |
61 | 30 | 50 |
62 | 30 | 50 |
63 | 35 | 45 |
64 | 45 | 45 |
65 | 50 | 45 |
66 | 45 | 45 |
67 | 40 | 45 |
68 | 40 | 45 |
69 | 35 | 45 |
70 | 30 | 45 |
71 | 30 | 45 |
72 | 25 | 45 |
73 | 25 | 40 |
74 | 35 | 40 |
75 | 55 | 40 |
76 | 55 | 40 |
77 | 55 | 40 |
78 | 45 | 40 |
79 | 40 | 40 |
80 | 35 | 75 |
81 | 30 | 90 |
82 | 30 | 120 |
83 | 60 | 160 |
84 | 65 | 200 |
85 | 75 | 235 |
86 | 90 | 300 |
87 | 115 | 215 |
88 | 125 | 145 |
89 | 165 | 115 |
90 | 105 | 55 |
91 | 50 | 45 |
92 | 25 | 40 |
93 | 20 | 35 |
94 | 20 | 35 |
95 | 20 | 35 |
96 | 20 | 35 |
97 | 20 | 35 |
98 | 20 | 35 |
99 | 20 | 35 |
100 | 20 | 35 |
101 | 30 | 35 |
102 | 40 | 35 |
103 | 40 | 35 |
104 | 40 | 65 |
105 | 40 | 65 |
106 | 40 | 60 |
107 | 35 | 60 |
108 | 35 | 60 |
109 | 35 | 60 |
110 | 35 | 55 |
111 | 35 | 55 |
112 | 35 | 55 |
113 | 30 | 55 |
114 | 30 | 55 |
115 | 30 | 55 |
116 | 30 | 55 |
117 | 30 | 50 |
118 | 30 | 50 |
119 | 30 | 50 |
120 | 30 | 50 |
121 | 30 | 50 |
122 | 25 | 50 |
123 | 25 | 50 |
124 | 20 | 45 |
125 | 20 | 45 |
126 | 20 | 45 |
127 | 20 | 45 |
128 | 20 | 45 |
129 | 20 | 45 |
130 | 20 | 65 |
131 | 20 | 90 |
132 | 20 | 110 |
133 | 35 | 135 |
134 | 45 | 150 |
135 | 55 | 165 |
136 | 75 | 170 |
137 | 100 | 125 |
138 | 115 | 100 |
139 | 130 | 90 |
140 | 65 | 75 |
141 | 30 | 40 |
142 | 20 | 30 |
143 | 15 | 25 |
144 | 15 | 25 |
145 | 15 | 25 |
146 | 15 | 25 |
147 | 15 | 25 |
148 | 15 | 25 |
149 | 15 | 25 |
150 | 15 | 25 |
151 | 25 | 25 |
152 | 25 | 25 |
153 | 25 | 25 |
154 | 25 | 25 |
155 | 25 | 20 |
156 | 25 | 20 |
157 | 25 | 20 |
158 | 25 | 35 |
159 | 25 | 35 |
160 | 25 | 35 |
161 | 25 | 35 |
162 | 25 | 35 |
163 | 25 | 35 |
164 | 25 | 35 |
165 | 25 | 35 |
166 | 25 | 35 |
167 | 25 | 35 |
168 | 20 | 35 |
169 | 20 | 35 |
170 | 20 | 35 |
171 | 20 | 35 |
172 | 20 | 30 |
173 | 20 | 30 |
174 | 20 | 30 |
175 | 15 | 30 |
176 | 15 | 30 |
177 | 15 | 30 |
178 | 15 | 25 |
179 | 15 | 25 |
180 | 15 | 25 |
181 | 15 | 25 |
182 | 15 | 40 |
183 | 15 | 50 |
184 | 15 | 60 |
185 | 30 | 75 |
186 | 40 | 90 |
187 | 50 | 110 |
188 | 60 | 130 |
189 | 75 | 90 |
190 | 85 | 75 |
191 | 95 | 35 |
192 | 45 | 20 |
193 | 30 | 20 |
194 | 15 | 20 |
195 | 15 | 20 |
196 | 15 | 20 |
197 | 10 | 20 |
198 | 10 | 20 |
199 | 10 | 20 |
200 | 10 | 20 |
201 | 10 | 20 |
202 | 10 | 20 |
203 | 10 | 20 |
204 | 10 | 20 |
205 | 10 | 20 |
206 | 10 | 20 |
207 | 8 | 15 |
208 | 8 | 15 |
209 | 8 | 15 |
210 | 8 | 15 |
211 | 8 | 15 |
212 | 8 | 15 |
213 | 8 | 15 |
214 | 8 | 15 |
215 | 8 | 15 |
216 | 8 | 15 |
217 | 8 | 15 |
218 | 8 | 15 |
219 | 8 | 15 |
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu