I've always missed playing GT4 on my PS2(my parents sold the PS2 and I stopped going here

) and I've been thinking of getting GT5. I've been waiting for it ever since I got a PS3 for Christmas, but from some time lurking around on this forum, it seems to be worse than GT4.
From what I heard, the game lacks several of my favorite courses(No Citta di Aria or Test Course

), still has 50 Skylines, very bad damage, RPG style leveling, all standard cars can only be bought in used car dealerships, still has zombie AI, no mechanical damage, only 50 cars at arcade from the start, and etc. It feels depressing.
Should I get this? Or should I wait for GT6 as what GT3 is to GT4, GT5 is to GT6.
This is what is missing from the game. I would suggest it as a rental because yes, a lot of this game is a step backward from GT4.
Look at this list carfully before you buy the game. I would actually recommend GT5P over GT5 by a longshot.
GT5 problem list
-Standard cars are TERRIBLE. Should be removed from the game.
-Standard car graphics are a step backward from GT4/GT3
-No inside view with standard cars
-Shadows in the game create a lot of graphic problems on both standard and premium cars. Really really bad on standard cars
-Cant take standard cars to the photo travel
-Cant zoom in on the standard cars with the on track photomode
-Audio is a bit strange and does not sound that good on the interior view. Sounds best on roof cam view (I hate that view)
-No spin around cinematic view after unlocking cars for completing events. Now you have the stupid Car Delivery. Which is terrible.
-Cant change wheels on standard cars
-No inside view on standard cars
-If you purchase wheels and change them, you have to re-purchase the wheels again.
-Some of the load screens are very long
-Online play is a bit rough right now with disconnect issues or freezing
-Piano pounding intro music is terrible. GT4 opening cinema was better
-Damage is just a complete joke even with premium. Takes a good 10-15 minutes of crashing to get results
-Used car dealership only carries standard cars
-No mechanical damage. You can drop from 6th gear to 1st gear with no mechanical damage at all.
-Almost impossible to get flames out of the exhaust
-Cars are dry when its raining
-No huge rewards for completing an entire event. Beginner events for example did not reward with any extra cash even with all gold
-During replays we cant fast forward or rewind.
-Buying parts does not increase the value of a car. So if you put $100,000 in parts into your car, you dont get any credit for it.
-Much of this game feels like a step backward from GT4.
-cant buy brakes
-cant fine tune the transmission. In fact there is almost no tuning at all for the transmission.
-cant change the tire pressure
-cant tell where my tires are wearing out. Inside, outside, too much camber, not enough camber??
-Only 17 cars get racing modifications