need recommendations

i've had my littman classic for about 8 years. i think it's time for a new one. it works great but i think i need a little bit of a change as i am very HOH in one ear and have lately been hearing some background noise moreso than i have in the past. i have never had a problem hearing anything with my littman before but i think i may want to go with a single head stethoscope now.

i am looking at ultrascopes and also kila cardiology (they are much more affordable!)

any recommendations either way??? any answers appreciated