I was once advised to "buy a Spector with a through neck, you can't go wrong". Absolutely agree and sound advice.
However to play devil's advocate I'd second @Lfalex v1.1's advice on trying as many basses as you can. Lots of other great basses within your budget - I've been impressed by G&Ls, Yamahas (lot of bass for your buck), and my current Lakland is worth every penny of the not many pounds it cost.
Sometimes you can have too much choice.