Mountain bikers do make me laugh sometimes...and i include myself in that statement!
Comments like 'i wouldnt buy as it looks like its had a generally hard life'.....erm yes, its a mountain bike and it will have been designed and built for that purpose....hopefully.
Although the comments about Yetis cracking on a regular basis would put me off the brand entirely rather than this particular model, if a supposedly good manufacturer has a reputation for frames that break then surely they're not fit for purpose in general?...in which case how does a firm like Yeti get to command high prices for their frames?....bizarre.
As somebody else alluded to, a lot of 'mountain' bikes get wheeled out around Swinley once a week and polished to within an inch of their lives.
There comes a point when people should admit they bought for fashion reasons or that perhaps they overspent and are now worried about damaging a bike that cost thousands.
I've been there with Motorcycles, to the point that i wouldnt ride the bloody thing if there was a cloud in the sky and the slightest chance of rain.
It was ridiculous and detracted from my enjoyment of riding motorbikes....to an extent it was similar with my last FS mountain bike too.
The solution?....life is too short, with my 30s coming to an end and riding time (both mountain bikes and motorbikes) increasingly precious i decided to downgrade both the bikes....the end result is i now have a mountain bike i can happily put away dirty and not feel guilty for doing so and also rag the arse off it knowing that i wont cry if it gets dented and wont cost the earth to replace if the damage is terminal.
I agree with the OP's sentiment, bikes are tools that allow you to enjoy the hobby which is riding....but bizarrely we get hung up on the tool itself!....a great, blingy and expensive bike on a crappy trail will result in a boring ride but a cheap bike (perhaps second hand, maybe end of year clearance, damaged stock etc) on a great trail will result in an enjoyable ride....its not the bike, its the trail....we know this which is why holidays in Canada, the Alps etc are so popular as terrain like that is hard to come by on these shores....and yet the irrational part of us always puts far more importance than is necessary on the tool required for the job....i.e this new squash racquet will make me a better player, no it wont....increased fitness and skills coaching will do.
The same is true for mountain biking and most sports to be fair....companies know this which is why advertising works and marketing budgets are huge, we are easily lured by the new and shiny.