I just lost 70K tokens by being early adopter prior to ETH price surge

Wonderful start !
You didnt lose 70,000 tokens.
The price of BTC and ETH will change but the price of the tokens are pegged to the dollar. If you had $1000 in your bank and sent it to an exchange and purchased BTC or ETH, and sent to the ETN crowdsale immediately right after that, you would be extremely close to 1000 × 150 ETN, which is the going pruce for the next two days.
If you got ETH ot BTC some other time, going price for that, is what you received towards the purchase of ETN at 150 per dollars.
Thats all we can hope for.
We can always look at all the possibilites with BTC and ETH going up and down over the time of the crowdsale, and at the end we will be able to see when were the best and worst times to buy based on the volatility of BTC and ETH.
Once it can be transfered when we go live on Nov 1st, it wont be pegged to the dollar anymore.