Not necessarily. The equivalent exchange of alt/btc will be worth the same/more/less but that end amount of btc is worth more in $$$. So the answer is yes and no.  If your lucky btc, ltc, and alt will appreciate creating huge profit potential. For example IFC/LTC market from last summer to about jan/dec timeframe. BTC was worth $100, LTC $2-3 and IFC about 10-20 liteoshi. Do the math that's a huge reward with vary little risk, investment didn't even have to be big to make significant money. And, all in about 6 months.

To put all this in perspective I literally forgot about 10 mill ifc that ended up being worth $1,000 in December.