why not search ebay for other brands/subs and compare them yourself. might be hard to find something as cheap as kicker with alot better build and such only cause kicker doesn't have the best name as far as subs go. not really much resale on them. spend the extra money and get something good, or instead of buying a pair get a single sub setup.
If i was you. I would defidently wait for the new AA driver line. AA new driver line is gonna to be really good and very affordable , but if you can't wait, FI and audioque should do you justice
For all u DD fans that willl tell him to get a DD, he doesnt wanna spend much, so don't suggest them