Dates are mostly March 2008 and lower. In other words, Zephyr revision down to the original Xenon.
Falcons and Jaspers I've not had in for ROD (ring-of-death) repairs yet ... only modding
1 idiot did try to mod his Falcon and didn't ground it whilst doing so. The static (from placing it on carpet) killed the motherboard. I'm now the proud owner of a 2 month old Liteon DVD-ROM
In terms of PS3s, I've received the whole gamut. From launch models to brand new models. Every revision so far has had a Blu-ray unit failure. The funniest for me (not the client) was a 2 week old 80GB console that had a laser failure. I say the claimed 1% failure rate by Sony is a load of bollocks. I replace on average 5 Blu-ray units a month (either just the laser or the entire laser assembly).
In terms of YLOD (Yellow Light Of Death), I've had 20 consoles in this year so far. 40GB and 60GB PS3 consoles (earlier models that now have been phased out). Out of those 20, 5 were refurbs from Part-serv that on closer inspection showed that they were consoles that had previously broke down but were resold to the general public as a 'like new' PS3.
That is why I find the fanboi wars on this forum and others so laughable. Both the Xbox 360 and PS3 were rushed out to market to gain consumer $. If more time had been spent on ironing out the design deficiencies, we would not have the catastrophe of bricked (broken) consoles we would be having now.
The Wii isn't immune to breakdowns either. 'Black screen of death' due to the Bluetooth module dying as well as laser replacements do come in every few months.
So I'm kept quite busy during the week and will be enjoying my holiday when I take one later in the year.
I hope that answers any questions ...