So far my Sony list looks like this..
1x PS1 (launch model)
1x PS2 (launch model)
2x PS3 (launch model)
1x PSP-1000
1x PSP Go!
1x Sony VAIO laptop
Still own them all. At some point i had a sony walkman when i was younger and a Sony Ericsson phone but i no longer have them.
So that would be 6 products not counting a 2nd PS3.