You may very well need it. I was very happy with these speakers for about a year and then pop, fizzle puff… Ok things break from time to time and that's life but if your expecting any technical help from Creative Technologies good luck! I tried for months to find out who thier certified service company was that looked after faults etc and had no help from Creative at all. They ended up ignoring my emails and I wasn't going to pay them more money for over the phone help (which is charged by the minute). After trawlinf for info on these speakers it is obvious (from looking at the creative tech forums) that there is a design flaw which makes these speakers prone to heat damage BEWARE! When they do work they sound great (THX certified) but if you have any faults RIP S750's.
Overall… A bit of a gamble, as they are great when they work but, may be more trouble then they are worth if you have problems.