Go new or repair snow blower?

[ecduzitgood]

I've got an Ariens st1032 (early 80's model 924073) 10hp/32" and I need to buy a new starter(120volt) and look into a carb issue either new or rebuild kit (with float). I also have a newer Ariens st1336LE (model 924073 supposedly 4yrs. old)w/electric 12volt start 8hp/36"(not 13hp like I thought) I just got off of c-list last week. The newer machine needs a new scraper bar and tomorrow I'll check the belts seems to have some issues I'll look into. What I liked about the newer machine is it apears to have the same body as the older machine (heavier steel with the steel chute). I have a driveway that is 120' long plus I clear out around the hydrant (I clear this like a small driveway so there is easy access) and I also make paths around the backyard for the dogs (they are corgies so they have short legs). I am wondering how the newer machines are built (thinner steel and plastic chutes??)and are they worth the money? Do they build them like they used to?

Thanks in advance!
Ed