I own a very mild modded 32 gtr and an old vn as my daily driver. I have a house. Im 27 and have owned a heap of modded cars, road bikes, dirt bikes. I've always had 1 toy and sold one to buy another. Sell your 33 and buy the car you want otherwise you'll sink $$$ into the gts and yes will be fast in a straight line etc etc as pointed out, but at the end of it you'll be saying, i wonder if i bought a gtr back then & i could have bought a gtr with the $$$ spent.
I'd consider a vn/p as a daily driver. I bought my vn of my mum years ago as a daily driver. Has 313000k's on it, hasnt missed a beat. She had it since 70,000. Thats not a once off claim either. Theres so many you can buy them for practicly nothing, just have to know what to look for i spose.
A r32 gtr was always a dream, took me a long time though to find one in the original looks department and as tidy as it is. Utterly an amazing machine, that leaves me/passengers breathless/speechless. i could ramble all night how much i love it but the only thing i dont like are the stocker brakes, but you wont have to worry with the 33.
At the end of the day your still buying a fairly oldish car that can be very $$$$ to repair (helps doing a lot of stuff yourself) but imho the grin and history that goes with that badge is priceless.
Mike