Can't decide if I should get a new combo amp or a new 5 string Warwick fortress (rock bass) I play a 4 string ibanez that is my first bass but i am looking to learn 5string. I'm also looking to get a good size combo that will meet my needs for years to come. My budget is $6-800. Do i keep learning on my 4string and get a amp or get a 5 and keep playing the way i do now, through headphones. I can't buy them both now so what one do I go for first? Decisions decisions.