I love the Titanium line as well but don't collect it due to price... To me the repaints are a necessity, as with the basic 3.75" figure line, or $20 vehicles, or whatnot. The beef I have is pricehikes that just go above and beyond. That's an issue with all SW products these days though, as Hasbro latches onto any excuse to jack prices...
If Titaniums were $5, I'd probably still collect. At least the OT ships anyway.
For me though, pricehikes have killed this line as something I can justify.