Would this be a god place to post gratuitous pics of my collie pup, Pip?
Anywhere would be a good place to post gratuitous pics of
any pup

Pip's
gorgeous - aahhhh

Totally never take on an older dog, it`s just someone elses problem.
Re: older dogs, I think it wise to exercise caution, of course, but with working collies a significant proportion are sold as trained or part-trained dogs. Some dogs end up with the wrong kind of handler for them and need a rehome to find the right sort of handler, some are simply surplus to requirements and become available for sale, some are trained by triallists and found to be more suited to farm work than trialling, etc, etc. There are pros and cons with buying an older, trained or part-trained dog and there are pros and cons with buying a pup and either getting it trained or trying to train it yourself.
I started my sheepdog handling and shepherding career with two adult dogs, one which 'knew what to do but didn't really have any commands' and one part-trained. Both were clearly very friendly with people, which was important as there was to be a pre-teen at the farm. I was able to 'test drive' both dogs before commiting to them - in fact, I had a 'return if not satisfied' arrangement with the former, and bought the second from dealer who is also a trainer and a trainer of handlers, so the backup was there if there were any problems. (There never were, he was a tremendous dog.)