Absolutely agree. Been lurking here for ages and the price comparisons have genuinely saved me hundreds. When I was spec'ing out my backup system last year, I'd have probably gone with whoever had the shiniest website without this lot keeping everyone honest.
The thing that gets me is how much variation there is between suppliers for the same Victron kit. I nearly ordered a Multiplus from one place that was £80 dearer than another — mental when you think about it. Having folks actually posting real quotes and part numbers means you can't get caught out by vague marketing speak.
What's particularly useful is when someone mentions delivery times too. I needed a battery bank sorted quickly for my boat's shore power setup, and knowing that one retailer was two weeks out versus another being next day made the difference. Cost me a bit more but saved the headache.
Only thing I'd add — would be brilliant if we could get more posts on the specialist stuff. Plenty on inverters and panels now, but sizing and costs for hybrid systems are harder to pin down. Anyone got recent quotes on 5kW hybrid setups? Genuinely trying to work out if going hybrid or sticking with pure off-grid makes more sense for my setup.
Reckon this is what makes the community actually useful rather than just a sales channel for suppliers. Keep the pressure on them.