How you can say it is "quite pricey" when a 1 day explorer is £ 11.50 and a 7 day one is £ 30 is beyond me. That one day is cheaper than a day return by train from Penrith to Oxenholme.
The 7 day ticket is priced for locals getting to work (very similar to Vectis, indeed). Most people don't go to the Lakes for a week, it's primarily a weekend/few days type destination. People going for a week are very unlikely not to do so by car if they can, because they need more luggage.
I think you're thinking about it from an enthusiast's perspective, though. £11.50 is great value if you're going to ride round on buses all day. Most people aren't, they'll make a return journey a day. As is often the case, the singles are priced up somewhat (ENCTS reimbursement, anyone?) so those people are hit relatively hard.
As for the train fare, if a day return from Penrith to Oxenholme is £15.70 (which it is), that is outrageous and needs reducing to about £10 or even less. It's about half the distance as from Bletchley to Euston, on which a Super Off Peak is priced very similarly and an Off Peak about £20.
I fail to see why any of those places need a bus station - as tourist spots they already have the facilities you'd be looking for e.g. refreshments, toilets etc provided. Reducing car parking in places like Grasmere won't help anyone - it'll simply place more pressure on the remaining spaces and encourage people to go elsewhere.
If you've ever stood around waiting for the bus in typical Lakeland weather, you'll know why quality waiting facilities are needed, as is quality information for tourists (logic would be that any tourist information office would be at the bus station and could sell tickets etc too). Also, as Alex Hornby and Ray Stenning well know (why do so many others disregard this?) the "soft product" has to be good to get people out of cars. Two tumbledown bus shelters on the edge of a small car park simply do not sell the product. Stagecoach have the on-bus "soft product" pretty good in the Lakes, particularly the route under discussion, but off the bus it really is appalling.