I think for many, they view Intel based upon how well they do running computer games and think the stock resolves around that when we have learned that their income streams are more widely spread.
As for alternative to TSMC, that gets down to getting ahead on nodes or when nodes get to a stage that they won't get any smaller. Also the work with IBM is interesting and whilst IBM left the FAB industry, they still do research and that combination may help Intel catchup or surpase the current cutting edge TSMC offer.
I do feel what Intel is going for is opening up their 14nm(insert plus signs to taste) as they shift their core onto the 10nm. They had a lot of investment in 14nm and milked it well, but now they have the opportunity to open that up and gain value from that instead of the usual retooling one node into a new node and some node changes will be more impacting and might well be the case. Let alone the downtime and then to get the plant particle free after all the work - very costly. So to cash in on that as is more and just build new plants from scratch can for the accountants become very much the right direction to go and that is how it seems to be. More so when politically getting subsidies to build new plants over retooling an existing one can make that option even cheaper.
However it is being driven, it's good for Intel and the industry as a whole as more choice. Equally I'm very interested in how Intel and IBM will collaborate and have a good feeling about all this.