So I just bought a used washer and dryer.  It's a Kenmore set that's
approximately 7 years old that received an average amount of use.  I
paid $175 for the set.  It's electric.  I haven't used them yet to
know how well they work, but I bought them from a family friend, so
I'm fairly confident they'll be at least okay.

I've had someone recommend that I get a service guy out there to check
them out, do whatever voodoo magic repair people do, and make sure
they're in good working order.  But to get someone to come out and
look at them will cost $65 (at least from Sears).  So here's my
question...is there a good reason why I should spend $65 to have
someone check out my "new" used washer/dryer or should I wait until
something happens (which will hopefully be never) and then just get it
repaired and pay for the service call then?  Is this "preventative
maintenance" (which will cost 1/3 of what I just paid for them) really
worth it?

Please feel free to ask for clarification and I don't necessairly need
internet citations for your research.  I'm happy to accept answers
based on the personal expertise from someone who knows about
washer/dryer repairs.
Thanks!!!

Hi needsomeinfo,

I wouldn't spend any more money on them. The smaller things like a new
hose for the washer can be replaced by you. The motors are the bigger
items and they will stop working eventually and that will be the time
to consider calling a serviceman. If you're handy, even motors can be
replaced by you. It's the same as buying a used car - figure out how
long you'd like them to last and if you make it that far, start
shopping around for another set. If you do hire someone, consider a
local handyman rather than a Sears specialist (best to call Sears only
while the appliance is still on warranty).

Sizing up used laundry appliances
"When taking stock of the appliances, the laundry room is particularly
important because problems with washers and dryers are costly to
repair. Most laundry appliances will last about 12 to 14 years. To
test them, turn them on and note whether all the cycles work; whether
there's adequate water pressure as the washer fills and whether the
dryer gets warm; and whether there are any leaks or squeaks -- signs
of worn belts. If the dryer vent is vinyl, it will have to be replaced
as vinyl ducts are flammable and are now in violation of safety codes.
Next, check the washer hose for cracks, corrosion or blisters, which
are signs the inner hose lining has deteriorated and could rupture.
Positive features to look for include delicate or hand-wash settings,
larger load capacities, low noise level while running and conservation
functions, as these indicate newer models."
http://www.lendingtree.com/cec/yourhome/buying/used-laundry-room-appliances.asp?esourceid=24200&source=24200

Regards,
hummer

I recommend taking a vaccuum and cleaning the underside of both
machines and cleaning out the lint and dust that collects in the
bottom of all machinery. It may stick to any oily or greasy surfaces
so be prepared to wipe up anything the vaccuum doesnt get. Dust and
dirt are the things that will kill the electric motors.