Not so. The Entwistle neo's are very similar to SD quarter pounder, in terms of sound and output. Less expensive pickups are so good these days, don't think otherwise.
If you like vintage tone, my favourite is Fender custom shop 62, however Wilkinson do an inexpensive alnico pickup, which sounds scarily close, despite the big price difference. Tonerider also make great pickups which are also inexpensive. Roswell do their own version of SD quarter pounder, which are good and inexpensive, as well as Vintage pickups too.
The Geezers, or Steve Harris pickup are great for blues/rock. Just note with Entwistle neo's are very deep pickups, moreso than the standard P pickup, so make sure the body of your bass is deep enough to accommodate them!