i would at least wait until the halfing and not sell before

Agree with you, the price $450 is really cheap for buying if we think about the price in the time when halving will occur, at that time the price will cross $700 and so the benefit to us is from whatever price we buy.

It highly depends on the type of trader.

Short term traders buy and sell constantly to make profits while a long term holder just buys at a certain price and keeps holding it till it reached the price he is waiting for.

If you haven't bought any coins yet, then I will recommend you to do it right now before you end up buying at +$500 prices.

Thank you Eliovp

The main issue is that the avg profitability with the current ETH and DCR USD value, too low to let the nano's be a good buy at the market prices. With a bulk order obviously the situation is a bit better, but right now here's the situation:

reference data: 6 NANO's in a single system, USD values, electricity cost 0.3$:

power consumption: 0.57KWh
24h gross profit ETH: 11.04
24h electricity cost: 4.1
24h gross NET profit ETH: 6.94

power consumption: 1.1KWh
24h gross profit ETH+DCR: 15.47
24h electricity cost: 7.92
24h gross NET profit ETH+DCR: 7.55

total cost of the platform in USD: 4397
linear break even NOT considering the electricity (ETH+DCR), in days: 284
linear break even considering the electricity, in days: 582

a "BIT" too much.. Even with an electricity cost of 0.10$/KWh we've got:

power consumption: 0.57KWh
24h gross profit ETH: 11.04
24h electricity cost: 1.368
24h gross NET profit ETH: 9.67

power consumption: 1.1KWh
24h gross profit ETH+DCR: 15.47
24h electricity cost: 2.64
24h gross NET profit ETH+DCR: 12.83

total cost of the platform in USD: 4397
linear break even NOT considering the electricity (ETH+DCR), in days: 284
linear break even considering the electricity, in days: 343

I live in Italy and to obtain 0.1$ I should spend at least 35k EUR to produce electricity with solar panels and wind turbines.

Yes and switching to POS has been delayed further announced days ago. 

Failure of a nation does not refer to how they do things (differently or otherwise).
Failure of a nation refers to quality of living, security, rule of law, monetary stability, etc.

Well I can tell you that it is not the land of the free or the place where you can make any dream come true. That is for sure.

I just posted this in another thread

https://bitcointalk.org/index.php?topic=1279718.msg13719874#msg13719874

This is what I do with my smaller mining hardware.

I am doing this more for a hobby, but if I hit a home run with one I will take it. LOL

Ethereum is the new kid on the block atm. Seems to have good upside and a large following.

I advice you don't invest time and money in shitty altcoins. For now your best option is ethereum, and if you want an advice, don't change them quickly.. let the speculation do its magic.