Some people managed to get these as cheap as £150 and others have paid 2k
If you think your's is bad, you should of seen the one I picked up with Space Harrier from Cornwall, Nick Hutt spend many many hours stripping it and restoring and at the end it looks amazing
Paid 1K for mine, I could of got it cheaper to be honest but I missed out on a few, and as soon as I bought that from a guy in London, one came up in coventry and it was in real nice condition
Still need to get mine stripped and restored, but it's still working at the mo, so no rush
These machines are worth the money, compare it to an upright box with screen and board, you get alot of machine for the money and there aren't that many left around, most of them for sale are one like yours, just change hands amoungst collectors these days
Will never be parting with mine, it's just too cool