Reflex finders

[AstroApprentice]

I noticed this beat up looking refractor with reflex finder on eBay:
https://www.ebay.com.au/itm/FOCAL-ASTRONOMICAL-TELESCOPE-AND-VIVITAR-TRIPOD/323819232854?_trkparms=aid%3D111001 %26algo%3DREC.SEED%26ao%3D1%26asc%3 D20180816085401%26meid%3D3f328a2ca5 964a9bbea7572be54fb791%26pid%3D1009 70%26rk%3D1%26rkt%3D11%26sd%3D32381 9232854%26itm%3D323819232854&_trksid=p2481888.c100970.m5481&_trkparms=pageci%3A04267800-8592-11e9-b052-74dbd180777b%7Cparentrq%3A1a9f59a31 6b0ad3058514538fffc35af%7Ciid%3A1
Just wondering why no modern refractors designed for visual use come with reflex finders? - they seem like a good idea to me...

[bojan]

Those finders do no have a great FOV..

It is also the price.


IMO much better is RDF (https://www.ebay.com.au/itm/Holographic-Laser-Sight-33mm-Scope-Reflex-4-Red-Green-Dot-Reticle-Picatinny-Rail/153075919022?ssPageName=STRK%3AMEBI DX%3AIT&_trksid=p2060353.m1438.l2649)...