Researching about hearing aid manufacturers and hearing aid supplies was a complete shock - as I did not realise that there were so many to choose from! That means finding dirt cheap hearing aids are going be hard! Rephrase - finding dirt cheap and effective hearing aids are going to be hard!! Look at the list I found!

Audex Assistive Listening Systems
Audibel
Audient Services, Inc.
Audina
Audio Controle
Audio Controle, Inc.
Audio Medical Devices Limited
Audiocontrole
Authorized Hearing Systems
AVR
Beltone
Beltone Electronics Corp.
Bernafon
Bernafon-Maico
Bosch
Communication Aid Manufacturers Association (CAMA)
Custom Earmold Labs
Danavox
Electone
Electro-Medical Instrument Co.
EMSEE labs
GN ReSound
Hansaton Hearing Systems
Implex
Knowles Electronics, LLC
Magnatone
Microsonic, Inc.
Micro-Tech
Ongbird
Oticon
Oticon Inc.
Phillips
Phonak
Phonak Hearing Systems
Phonic Ear
Precision Laboratories, Inc.
Qualitone
Rexton
Rion
Siemens
Siemens Hearing
Siemens Hearing Instruments
Siemens Hearing Instruments, Inc.
Songbird Hearing Inc.
Sonic Innovations
Starkey
Symphonix
Telex
Transonik
United Hearing Systems
Unitron
Vanco Factory Direct Hearing Center
Widex
Williams Sound Corp.

I was hoping that I would be able to find some sort of consumer reviews on hearing aids, which list the best hearing aids.

Hopefully, with more research I will be able to have hearing aid comparisons so that I can have more knowledge to help decide which would be the most appropriate hearing aid for Mum and what other supplies and information will be beneficial - for example, dry aid for hearing aids, hearing aid battery ratings, where to find cheap hearing aid repair work, assistance with hearing aids cost. Wow, can't wait for Mum to have better hearing!