Keep an eye on MSC, they occasionally have mytutoyo verniers on sale.
eg this one: **LINK**
was selling for £59.99 (plus vat) a couple of weeks ago.
Personally I have a couple of cheap Moore and Wright 6" from machine DRO, these ones:
**LINK**
I was testing one of them today against some slip gauges and they were no more than 1/2 a thou out (which is their resolution) from 1/4" to 3". Given the slip gauges are probably well over 50 years old and more than a bit rusty in places I didn't think that was too bad 
More importantly they are consistent, even with a significant variation in pressure, something I have found a problem with the cheap no-name verniers I have.