IMO, no, this is way too much money for what it is. First of all it appears (though I could be wrong) that it comes with lower quality everything. I do not believe the reflector is air cooled--that is an upgrade. The ballast is a magnetic ballast--the digital is an upgrade. The duct booster fan will not work--yup another upgrade. You will almost surely need a carbon filter--another upgrade. The rest of what comes with the package are inexpensive things to make it look like it has more than it has--the timer, the grow bags, the hangers, a 6" clip on fan, etc. The 400W set-up has a $460 price tag....and then you need to add shipping on top of that.
Here is a 400W digital dimmable with a cool tube, HPS and MH bulbs, timer, and hangers--$139 hXXp://www.amazon.com/Apollo-Horticulture-GLK400CT24E-Digital-Dimmable/dp/B00547I5I8/ref=sr_1_1?ie=UTF8&qid=1381412326&sr=8-1&keywords=400w+hps
Here is a 4" fan and filter combo for $110 hXXp://www.amazon.com/VenTech-IF4CF412-Inline-Virgin-Charcoal/dp/B004Q2ER5C/ref=sr_1_1?ie=UTF8&qid=1381412514&sr=8-1&keywords=4%22+fan+filter
Here is a 3 x 3 tent (a 40" x 40" tent is too large for a 400W light) for $85. hXXp://www.amazon.com/MILLIARD-Mylar-100%25-Reflective-Hydroponic/dp/B00ETBE00M/ref=sr_1_29?ie=UTF8&qid=1381412784&sr=8-29&keywords=grow+tent
You get the idea. These are all upgraded products with shipping included or added and you are at $334. The only things not here that is with the HTG package are grow bags, soil, nutes, a small seed starter tray, and a small clip on oscillation fan. All this is probably available locally for around $50.