Is ASIC miner worth my money?
In my opinion trading BTC has a higher potential of profit when compared to mining because of the sheer difficulty.

If you do decide to go for an ASIC.
I would recommend Coin Terra GoldStrike1 2TH/s ASIC miners.They are expensive at 6,000 USD.But their Break Even time on January Batch is 4 Days.If they deliver through this is the only miner I feel could have the potential of profit.
I would not recommend BFL as they seem to be taking an insanely long time to ship their products and there are other severe allegations made against them by their users.

Alternatively, You could go for Litecoin Mining and convert to Bitcoin later