She's not a pikey backpacker!!!
Babs - if you want something at a quarter of the price then stay on the next beach along. Still really lovely but don't expect the same standards. You'll get something amazing at the Sanctuary.
...and the crowd is lovely! Expect full on tree hugger hippies that barely have one foot on the ground, lovely family types and complete fook heads that have done too much acid and got stuck.
A really bizarre combination and miles away from the usual traveller riff raff that tend to populate the island like cancer.
The alternative is to stay in a completely different area (or island) but I think for a short stay Koh Phangan has everything you need.
You might want to pop over to Samui for a few days to visit Gecko bar (where Danny Rampling did his non-retirement...say hi to them from me if you do) and ride an elephant.
Samui isn't as nice tho - it's much more built up...urgh - just stick to the north beach and the elephant bit.
Koh Tao is for divers but also beautiful. Jansom bay is a great find.
...
Alternatively - forget all the above and do something really different:
www.goldenbuddharesort.com
If you go there, you're really out in the sticks...you won't see any travellers at all (a huge plus) and monkeys will wake you up in the morning.
Expect to see the odd millionaire floating around too.

It's a really special place and the world's best yoga teachers choose to do their main retreats there...endorsements don't get much better than that.
It's the most beautiful place I've ever been in my life, streets ahead of anywhere else in Thailand.
Like I said, if you want to meet and discuss (with intermittant wine and poppers

) you're very welcome.