Im no master (modest!) but i would like to say welcome to the site.
And on a different note:
I love GT4, i have only just started playing it again after an entire year without it, because it broke. Like most do. But i find it very difficult to accept that GT5 could be any better, and if so, then i dont think i will bother buying a ps3 anyway! I'll think about it if and when the prices drop, or if i become a millionaire! But until then i find everything i need in GT4.
But another thing, alot of people are saying this forum will share the same fate as the GT3 forum, and although the basics are similar, you must remeber the most important factor about the new GT games, the price. With GT4 it was also released on PS2, just like GT3 so people ddnt need to consider the cost of getting a new console, unlike with GT5, and the price difference between GT3 and GT4 are nothing compared to the price difference between GT4 and GT5.