Auntie buying me ipod Touch feeling guilty?

Ok, so im 14 and i REALLY REALLY WANT an ipod touch 4th gen. a 32gb one because 8gb isnt enough for all my music movies/videos pictures apps and games rite? NOTE i am a chinese australian-born, trust me having chinese family and background changes things alot. anyways, so ipod touch 32gb is around $350. i dont live in a poor family, just one with a lot of strain from high bills, retirement, expensive(and good) house, replacement car and dental braces, as well as expensive plane tickets(and my family is chinese). so my maternal grandad is sick, gonna pass away soon, and my mum is sad, so shes going to china soon to stay with him for a while. lately ive been badgering parents and older sister(around 25yrs) about getting me an ipod touch, but i dont wanna waste their money, and put more stress on my mum. so then today my dad quietly suggested that maybe my mum could get my auntie from china to buy the ipod touch for me. because my auntie(dads sister) is married to a rich and successful man(dont comment on this, nothing bad about this),so both my aunt and uncle are rich. the question is, should i say yes to my dad? and get the itouch from my auntie? i want your honest opinions on this, if you were my rich auntie from overseas, would you buy your teen nephew an itouch without feeling bad or wasting your money? my main problem is that i feel very guilty, like im taking advantage or manipulating (or taking for granted) my auntie/uncle. is it actually bad to do that if theyre rich? would THEY mind at all if i asked them to buy it for me? because i dont know whether im just paranoid, or whether it really will be inconvenient for them!! please, you guys must know the feeling when you feel like youre doing bad when you know youre not, or the other way around. tell me would YOU care, and would THEY care, and should i feel guilty about this. remember my parents and older sister might also feel this way.