EOS 10S/EOS 650 OK to learn film with?

A professional friend gave me an old EOS 10S body, and my dad has an EOS 650 with a broken lens which he no longer uses. Should I invest the time and/or money in cleaning and maintenance for these cameras, which I think are both in good working order? I've been using a 300D to learn the ropes. Are these cameras decent for learning film, or are they hopelessly obsolete? I know some really old cameras with excellent lenses are still used, but are these two cameras in the "old classic" category? Would I be better off investing in a more modern entry-level film camera, or will these offer all a neophyte will need for a while?

I have an EOS 650 and I like it. I have been using it to learn how to shoot with film and I don't consider it to be obsolete.

Thanks for comments. How does it compare to the 20D in autofocus and metering? Are there big dissimilarities in the way things work or accuracy?

I still have both my film bodies although they don't see that much use. A 600 and a 5, the 600 is of the same era as the 650. They are good camera's and capable of taking good photo's. The foucsing is still good, although you don't have as many foucs points on the 600 as the 5 or digital cameras of now, I have a 10d so can't compare it to the 20d. metersing is fine. As long as the body is in good nick then you shouldn't have any problems with the camera.

Autofocus is fast and accurate...although as stated earlier, there are not as many focus points. My only complaint about the autofocus, is the focus point doesn't light up in the viewfinder like it does with the 20D.

I would recommend trying out a EOS 650...I got mine off of ebay for only $16 and am greatly pleased with its performance.

Those older models will have problems with gunk on the shutter sooner or later.
This can be cleaned off-ther are instructions on the net.

Apart from this the early model EOS cameras are very reliable (incredibly so considering their age!!) and can be very usefull.
The metering is pretty much spot on but don't expect autofocus to match the newer bodies .Their ability to lock on to low contrast subjects,number of focus points and focus tracking will be sadly lacking.In normal light they'll perform very well

I would think that both cameras would be just fine. I wouldn't bother sending them in for cleaning or repairs though unless the total cost came in under $75 since for $60 to $100 you could probably pick up a decent used one on eBay.

I have an EOS 630. It's a good camera. I can't remember if the 650 is a step up or down, but either way it'll be a good camera.

Thanks to all for comments. I'll try to resuscitate the EOS 650. It will be used mainly in controlled conditions so its limitations shouldn't be a problem. Comparing performance with that of 300D should be very instructive.

EOS630 is better than EOS650 (EOS620 at the middle).
I find it very odd to say it in 2005.