Aston isnt big enough to offer accomodation to those not putting Aston as their firm choice. This simple fact is evident from reading the information presented to you about Aston at various open days and if I remember correctly, upon their website. This is one of the, if not the, smallest university in the country and accomodation is one area in which it lacks significantly, this is exacerbated by the demand that Aston suffers from its highly regarded teaching and university reputation.