NES

If you want to get a collectable console and games get into the neo geo aes scene. The games can be pricey but they are fairly rare and the cost of the carts rise year on year.

the cost of the carts new were excess of 100 quid if i remember right, prob why they are so rare now. Again from memory, only difference between the carts and arcade was the speed they ran at, the coin op versions seems to be quicker, possibly due to them running 60 hz and the home versions being 50 hz.