I think there’s so many strands to this. What your personal taste is, what your budget is, your belief on recycling furniture, your bank balance, even the type of house you grew up in as child and experienced other houses. Even the size of house will determine what you can fill it with.
I'm old. My house is mix of stuff…stuff I’ve chosen for myself, stuff I’ve inherited, stuff I’ve bought because I’ve just loved generally ,stuff I’ve loved and because it’s just the perfect colour or size I was looking for at the time.
The majority of my furniture is expensive and I’ve wanted it to last. The bigger pieces like my settees, chairs, beds, wardrobes etc certainly were all big expenses .I like my house to look very “home spun” think Emma bridgewater …so I’m never going to be building say a media wall for my tv or picking up a stand in ikea etc…my tv is actually on an inherited ercol sideboard that once belonged to my mil and I love the look of it plus the history of it being in my husbands family.
but that’s not to say I don’t have the odd ikea side table (mainly for the colour!) . My wooden kitchen table is actually from Ikea because I spent two years looking for one and this is the only one I liked. I’m currently in the process of buying/sourcing chairs for my kitchen table, but I want them to look vintage, old, worn, all in different shapes and colours. That will probably come from marketplace or antique fairs!
looking round my house now , taking in all the furniture, chairs etc…it certainly all comes from different places…I’m a massive massive fan of Laura Ashley, a lot of my occasional chairs, my coffee tables and side tables, lamps and lights are from there (oh how I miss it!) but I have stuff from next, Neptune, oak furniture village, a lot of independent stores, fairs, markets plus my inherited ercol.
When I was young and first married Argos was about my budget, you cut your cloth accordingly. Tbh I still do look there occasionally! But no way could I be affording say Laura Ashley at the time.
And a house isn’t built over night imo. It takes time to collect things, to build things, to make a home. I’m now at point in my life where I’ve invested in really good quality items that really all my house needs is “fluffing out” with pictures, textures, soft furnishings etc.
but that’s not to say that anyone say buying in Ikea is wrong, it’s just a different taste. A different style. A different perspective. Anyone buying in Ikea might recognise that they change their mind a lot/prefer to spend their money on holidays/get bored of stuff easily. I have two lounges effectively, one has settees in that are at least 10/15 years old, the other room has settees that are 26 years old. Sure they’re absolute quality classics but that’s not for everyone. A lot of people would be very bored by that, horrified that the look of their settee or room hadn’t been updated in that time. I just update with wallpaper, cushions etc
I also think it depends on your age. I absolutely detest anything gold. We lived through that during the 70s and 80s. I’ve no wish to relive it! My nan hated my wallpaper and the fact I kept my original fireplace, she thought it was terribly old fashioned but that’s because she lived through that look already as a child.
tbh I don’t think any one person is right or wrong, it’s all very personal. I love houses, I love interiors, I’m so into my house. I so want it to look “a certain way” but equally my SIL has no interest in her house whatsoever. To her it’s just somewhere to live whereas to me it’s very sparse with no warmth anywhere.