If you know your way around the software the Megapak gives all the Rds, RTs, & styles. It ends up being less then a $250 a year investment. If your making any money with the program that's a drop in the bucket. If it's a hobby it's a cheap price to pay for the enjoyment received.
As far as RB Dan you just aren't experienced enough to make that judgement. I've done well over 200 top of the line tunes all RTs and do not experience any glitches at all. Ask my wife. I use the program at least 6 hrs EVERY day either doing new songs or rehearsing my sets.

John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
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